Dyfyniad APA

Christensen, L. B. (1980). Experimental methodology (2d ed.). Boston: Allyn and Bacon.

Dyfyniad Arddull Chicago

Christensen, Larry B. Experimental Methodology. 2d ed. Boston: Allyn and Bacon, 1980.

Dyfyniad MLA

Christensen, Larry B. Experimental Methodology. 2d ed. Boston: Allyn and Bacon, 1980.

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