Dyfyniad APA

ebrary, Inc, Kopfer, H., & Kotzab, H. (2005). International journal of physical distribution & logistics management. Emerald Group Publishing.

Dyfyniad Arddull Chicago

ebrary, Inc, Herbert Kopfer, and Herbert Kotzab. International Journal of Physical Distribution & Logistics Management. Bradford, England: Emerald Group Publishing, 2005.

Dyfyniad MLA

ebrary, Inc, et al. International Journal of Physical Distribution & Logistics Management. Emerald Group Publishing, 2005.

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