Cita APA (7a ed.)

Shapiro, I., Smith, R. M., & Masoud, T. E. (2004). Problems and methods in the study of politics. Cambridge University Press.

Cita Chicago Style (17a ed.)

Shapiro, Ian, Rogers M. Smith, y Tarek E. Masoud. Problems and Methods in the Study of Politics. Cambridge ; New York: Cambridge University Press, 2004.

Cita MLA (9a ed.)

Shapiro, Ian, et al. Problems and Methods in the Study of Politics. Cambridge University Press, 2004.