APA-referens (7:e uppl.)

Christensen, L. B. (1997). Experimental methodology (7th ed.). Allyn and Bacon.

Chicago-referens (17:e uppl.)

Christensen, Larry B. Experimental Methodology. 7th ed. Boston: Allyn and Bacon, 1997.

MLA-referens (9:e uppl.)

Christensen, Larry B. Experimental Methodology. 7th ed. Allyn and Bacon, 1997.