Dyfyniad APA

Trochim, W. M. K. (2005). Research methods: The concise knowledge base. Atomic Dog Pub./Cengage Learning.

Dyfyniad Arddull Chicago

Trochim, William M. K. Research Methods: The Concise Knowledge Base. Cincinnati, Ohio: Atomic Dog Pub./Cengage Learning, 2005.

Dyfyniad MLA

Trochim, William M. K. Research Methods: The Concise Knowledge Base. Atomic Dog Pub./Cengage Learning, 2005.

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