Dyfyniad APA

Lee, L. J., & Dobler, D. W. (1974). Purchasing and materials management. Tata McGraw-Hill.

Dyfyniad Arddull Chicago

Lee, Lamer Jr, and Donald W. Dobler. Purchasing and Materials Management. Tata McGraw-Hill, 1974.

Dyfyniad MLA

Lee, Lamer Jr, and Donald W. Dobler. Purchasing and Materials Management. Tata McGraw-Hill, 1974.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.