APA (7th ed.) Citation

Derry, J. W. (1968). Political parties. Macmillan.

Chicago Style (17th ed.) Citation

Derry, John W. Political Parties. London: Macmillan, 1968.

MLA (9th ed.) Citation

Derry, John W. Political Parties. Macmillan, 1968.

Warning: These citations may not always be 100% accurate.