Houndmills, Basingstoke, Hampshire, England ; New York : Palgrave Macmillan, 2005

Boulder : Westview Press, 1988

Englewood Cliffs, N.J. : Prentice-Hall, 1987

New York : Facts On File, 1999
3rd ed. / edited by Deborah A. Kaple.

Beverly Hills : Sage Publications, 1980

Englewood Cliffs, N.J. : Prentice-Hall, 1984
2nd ed.

Montréal : Published for the School of Policy Studies, Queen's University by McGill-Queen's University Press, 2008
3rd ed.

Boulder : Westview Press, 1993

Lexington, Mass. : Heath, 1980

[Cambridge, Mass.] : Washington, D.C. : Ash Institute for Democratic Governance and Innovation, John F. Kennedy School of Government, Harvard University ; Brookings Institution Press, 2007

London ; New York : Routledge, 2001

New York : M. Dekker, 1988

Boston : Little, Brown, 1983
2nd ed.

Beverly Hills, Sage Publications 1973

Beverly Hills, Sage Publications 1971

Boston, Allyn and Bacon, 1967

Cambridge ; New York : Cambridge University Press, 2006

Indianapolis, Bobbs-Merrill 1970

Durham, N.C. : Duke University Press, 1977

Englewood Cliffs, N.J. : Prentice Hall, 1990
3rd ed.