APA aipamena

YOFFIE, D. (1994). International Trade And Competition. McGraw-Hill.

Chicago Style aipamena

YOFFIE, David. International Trade And Competition. McGraw-Hill, 1994.

MLA aipamena

YOFFIE, David. International Trade And Competition. McGraw-Hill, 1994.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.