Dyfyniad APA

Lee, L., & Dobler, D. W. (1978). Purchasing and materials management. Tata mc Graw hill.

Dyfyniad Arddull Chicago

Lee, Lamar, and Donald W. Dobler. Purchasing and Materials Management. New Delhi: Tata mc Graw hill, 1978.

Dyfyniad MLA

Lee, Lamar, and Donald W. Dobler. Purchasing and Materials Management. Tata mc Graw hill, 1978.

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