APA (7th ed.) Citation

England, W. B., Leenders, M. R., & Lewis, H. T. (1975). Purchasing and materials management (6th ed.). R. D. Irwin.

Chicago Style (17th ed.) Citation

England, Wilbur B., Michiel R. Leenders, and Howard Thompson Lewis. Purchasing and Materials Management. 6th ed. Homewood, Ill.: R. D. Irwin, 1975.

MLA (8th ed.) Citation

England, Wilbur B., et al. Purchasing and Materials Management. 6th ed. R. D. Irwin, 1975.