APA (7th ed.) Citation

LEENDERS, M. R., England, W. B., & Fearon, H. E. (1980). Purchasing and materials management (7th ed.). Richard D. Irwin Inc.

Chicago Style (17th ed.) Citation

LEENDERS, Michael R., Wilbur B. England, and Harold E. Fearon. Purchasing and Materials Management. 7th ed. Illinois: Richard D. Irwin Inc, 1980.

MLA (8th ed.) Citation

LEENDERS, Michael R., et al. Purchasing and Materials Management. 7th ed. Richard D. Irwin Inc, 1980.