Dyfyniad APA

Christensen, L. B. (1988). Experimental methodology (4th ed.). Allyn and Bacon.

Dyfyniad Arddull Chicago

Christensen, Larry B. Experimental Methodology. 4th ed. Boston: Allyn and Bacon, 1988.

Dyfyniad MLA

Christensen, Larry B. Experimental Methodology. 4th ed. Allyn and Bacon, 1988.

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