APA (7. basım) Alıntı

Gopalakrishnana, P. (1990). Purchasing and materials management.

Chicago Style (17. basım) Atıf

Gopalakrishnana, P. Purchasing and Materials Management. New Delhi, 1990.

MLA (9th ed.) Atıf

Gopalakrishnana, P. Purchasing and Materials Management. 1990.