APA ציטוט

Perkins, D. (1952). The American approach to foreign policy. Cambridge: Harvard University Press.

Trích dẫn kiểu Chicago

Perkins, Dexter. The American Approach to Foreign Policy. Cambridge: Harvard University Press, 1952.

ציטוט MLA

Perkins, Dexter. The American Approach to Foreign Policy. Cambridge: Harvard University Press, 1952.