Politics (of Switzerland) -- by the Swiss Federal Department of Foreign Affairs

Switzerland -- by the U.S. Department of State

Aubert, Jean-Frangois
"Switzerland," in Referendums: A Comparative Study of Practice and Theory, ed. David Butler and Austin Ranney, 1978.

Bonjour, Felix, 1858-
Real democracy in operation; the example of Switzerland ([c1920])

Brooks, Robert Clarkson, 1874-1941
Government and politics of Switzerland (1920)

Church, Clive. H. et al.
Aspects of Switzerland: Sources and Reflections (Canterbury: University of Kent, 1986)
The Politics and Government of Switzerland, 2004.

Codding, George A., Jr.
Governing the commune of Veyrier: politics in Swiss local government
, 1967.

Deploige, Simon, 1868-1927
The referendum in Switzerland (1898)

Fossedal, Gregory A.
Direct Democracy in Switzerland, 2002.

Frey, Bruno S., and Alois Stutzer
Direct Democracy: Designing a Living Constitution, September 2003.

Gilett, Nicholas
The Swiss Constitution - Can it be Exported? (Bristol: Yes Publications, 1989)

Glassey, Olivier
"Writing A New Constitution for Geneva: An Analysis of Participation Mechanisms," 2009.

Hilowitz, J. E.
'Switzerland in Perspective', Contributions in Sociology no. 92 (1990) (Praeger/Greenwood).

Huber, Hans
How Switzerland is governed; translated by Mary Hottinger, 1968. Hughes, Christopher
Switzerland (London: Praeger/Benn, 1975)

Klöti,Ulrich ... [et al.]
Handbook of Swiss politics; translated by Derek Lutterbeck and Stephan Lake], 2004.

Kobach, Kris W.
Referendum: direct democracy in Switzerland, 1993.

Kohn, Hans
Nationalism and liberty; the Swiss example, 1956.

Kriesi, Hanspeter
Direct democratic choice : the Swiss experience, 2005.
The Politics of Switzerland: Continuity and Change in a Consensus Democracy, 2008.

Linder, Wolf
Swiss democracy: possible solutions to conflict in multicultural societies, 1994.

Lijphert, Arend
Patterns of Democracy: Government Forms and Performance in Thirty-Six Countries, 1999.

Lloyd, Henry Demarest, 1847-1903
The Swiss democracy, the study of a sovereign people (1908)

McRae, Kenneth D.
Conflict and Compromise in Multilingual Societies, vol. 1, Switzerland (Waterloo, Ontario: Wilfred Laurier University Press, 1983)

Moses, Bernard, 1846-1930
The federal government of Switzerland (1889)

Sauser-Hall, George
Political institutions of Switzerland [tr. by Hugh Felkin], 1946.

Siegfried, Andre´
Switzerland; a democratic way of life; translated from the French by Edward Fitzgerald, 1950.

Sigg, Oswald
Political Switzerland, 1997.

Steinberg, Jonathan
Why Switzerland? 2d edition, 1996.

Steiner, Jürg
Amicable agreement versus majority rule; conflict resolution in Switzerland. Translated from the German by Asger Braendgaard and Barbara Braendgaard. Foreword by Stein Rokkan, 1974.

Stoddart, Jane T.
Against the referendum (1910)

United States Department of State
The initiative in Switzerland (1909)

Vincent, John Martin, 1857-1939
State and federal government in Switzerland (1891)

Vrooman, Carl Schurz, 1872-1966
Initiative and referendum in Switzerland. A memorial relative to the initiative and referendum in Switzerland (1913)

Walther, Fridolin M.R.
Introduction to the Swiss Legal System: A Guide for Foreign Researchers, November 15, 2000

Winchester, Boyd
The Swiss republic (1891)

Wikipedia articles:

Switzerland as a federal state
History of Switzerland
Modern history of Switzerland
Politics of Switzerland
Swiss Federal Constitution
Voting in Switzerland
Elections in Switzerland
Swiss Federal Council
National Council of Switzerland
Council of States of Switzerland
Federal administration of Switzerland
Federal Chancellery of Switzerland
Federal Chancellor of Switzerland
Communes of Switzerland
Cantons of Switzerland
List of cantonal legislatures of Switzerland
List of cantonal executives of Switzerland
Federal courts of Switzerland
Federal Supreme Court of Switzerland
Languages of Switzerland
Economy of Switzerland

Constitutions of the Cantons

Constitution of the Canton of Bern, 6 June 1993

Constitution de la Republique et Canton de Neuchatel, du 24 septembre 2000 (Etat le 29 septembre 2011)

Constitution du canton de Vaud, du 14 avril 2003 (Etat le 6 mars 2012)

Verfassung des Kantons Zürich (vom 27. Februar 2005)