APA (7th ed.) Citation

Johnson & Richard. (2001). Political science research methods (4th ed.). CQ Press.

Chicago Style (17th ed.) Citation

Johnson and Richard. Political Science Research Methods. 4th ed. Washington, D.C: CQ Press, 2001.

MLA (8th ed.) Citation

Johnson and Richard. Political Science Research Methods. 4th ed. CQ Press, 2001.