Dyfyniad APA

Keppel, G., & Saufley, W. H. (1980). Introduction to design and analysis: A student's handbook. San Francisco: W. H. Freeman.

Dyfyniad Arddull Chicago

Keppel, Geoffrey., và William H. Saufley. Introduction to Design and Analysis: A Student's Handbook. San Francisco: W. H. Freeman, 1980.

Dyfyniad MLA

Keppel, Geoffrey., và William H. Saufley. Introduction to Design and Analysis: A Student's Handbook. San Francisco: W. H. Freeman, 1980.

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