APA استشهاد

Kohl, W. (1977). Economic foreign policies of Industrial states. Lexington Books.

استشهاد بنمط شيكاغو

Kohl, Wilfrid. Economic Foreign Policies of Industrial States. Lexington: Lexington Books, 1977.

MLA استشهاد

Kohl, Wilfrid. Economic Foreign Policies of Industrial States. Lexington Books, 1977.