Dyfyniad APA

 Christopher, M. (2016).  Logistics & supply chain management.  Pearson Education.

Dyfyniad Arddull Chicago

 Christopher, Martin.  Logistics & Supply Chain Management.  Pearson Education, 2016.

Dyfyniad MLA

 Christopher, Martin.  Logistics & Supply Chain Management.  Pearson Education, 2016.

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