Cita APA (7th ed.)

Easton, D., Gunnel, J. G., & Graziano, L. (2002). The Development of political science: A comparative survey. Routledge.

Cita Chicago (17th ed.)

Easton, David, John G. Gunnel, i Luigi Graziano. The Development of Political Science: A Comparative Survey. London ; New York: Routledge, 2002.

Cita MLA (9th ed.)

Easton, David, et al. The Development of Political Science: A Comparative Survey. Routledge, 2002.