Cita APA (7th ed.)

Collier, D., & Gerring, J. (2009). Concepts and method in social science: The tradition of Giovanni Sartori. Routledge.

Cita Chicago (17th ed.)

Collier, David, i John Gerring. Concepts and Method in Social Science: The Tradition of Giovanni Sartori. New York: Routledge, 2009.

Cita MLA (9th ed.)

Collier, David, i John Gerring. Concepts and Method in Social Science: The Tradition of Giovanni Sartori. Routledge, 2009.