Παραπομπή APA

Gopalakrishnan, P. (1978). Purchasing strategy: Text and cases. Sterling Publishers.

Παραπομπή Chicago Style

Gopalakrishnan, P. Purchasing Strategy: Text and Cases. New Delhi: Sterling Publishers, 1978.

Παραπομπή MLA

Gopalakrishnan, P. Purchasing Strategy: Text and Cases. Sterling Publishers, 1978.