APA

Cohen W. I., . (1993). The Cambridge history of American foreign relations. Cambridge: Cambridge University Press.

Chicago

Cohen Warren I, . 1993. The Cambridge history of American foreign relations. Cambridge: Cambridge University Press.

Harvard

Cohen W. I., . (1993). The Cambridge history of American foreign relations. Cambridge: Cambridge University Press.

MLA

Cohen Warren I, . The Cambridge history of American foreign relations. Cambridge: Cambridge University Press. 1993.