Dyfyniad APA

Wilkinson, D., & Birmingham, P. (2003). Using research instruments: A guide for researchers. RoutledgeFalmer.

Dyfyniad Arddull Chicago

Wilkinson, David, and Peter Birmingham. Using Research Instruments: A Guide for Researchers. London: RoutledgeFalmer, 2003.

Dyfyniad MLA

Wilkinson, David, and Peter Birmingham. Using Research Instruments: A Guide for Researchers. RoutledgeFalmer, 2003.

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