APA استشهاد

Sundaram, A. K., & Black, J. S. (1999). The international business environment: Text and cases. Prentice Hall.

استشهاد بنمط شيكاغو

Sundaram, Anant K., و J. Stewart Black. The International Business Environment: Text and Cases. New Delhi: Prentice Hall, 1999.

MLA استشهاد

Sundaram, Anant K., و J. Stewart Black. The International Business Environment: Text and Cases. Prentice Hall, 1999.