APA引文

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

Chicago Style (17th ed.) Citation

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

MLA引文

Gopalakrishnana, P. Purchasing and Materials Management. 1990.

警告：這些引文格式不一定是100％准確.