Cita APA (7th ed.)

Bien, D. D., & Grew, R. (1978). Crises of political development in Europe and the United States. Princeton University Press.

Cita Chicago (17th ed.)

Bien, David D., i Raymond Grew. Crises of Political Development in Europe and the United States. Princeton, N.J: Princeton University Press, 1978.

Cita MLA (9th ed.)

Bien, David D., i Raymond Grew. Crises of Political Development in Europe and the United States. Princeton University Press, 1978.