APA引文

Leenders, M. R., England, W. B., & Fearon, H. E. (1989). Purchasing and materials management (9th.). Universal book stall.

Chicago Edition Citation

Leenders, Michiel R., Wilbur B. England, and Harold E. Fearon. Purchasing and Materials Management. 9th. New Delhi: Universal book stall, 1989.

MLA引文

Leenders, Michiel R., et al. Purchasing and Materials Management. 9th. Universal book stall, 1989.