Παραπομπή APA

Walters, R. S. (1970). American & Soviet Aid: A Comparative Analysis. University of Pittisburgh press.

Παραπομπή Chicago Style

Walters, Robert S. American & Soviet Aid: A Comparative Analysis. Pittisburgh: University of Pittisburgh press, 1970.

Παραπομπή MLA

Walters, Robert S. American & Soviet Aid: A Comparative Analysis. University of Pittisburgh press, 1970.