Παραπομπή APA

Kirk, R. E. (1969). Experimental Designl: Procedures for the Behavioral Sceinces. Wadsworth Pub. Co.

Παραπομπή Chicago Style

Kirk, Roger E. Experimental Designl: Procedures for the Behavioral Sceinces. California: Wadsworth Pub. Co, 1969.

Παραπομπή MLA

Kirk, Roger E. Experimental Designl: Procedures for the Behavioral Sceinces. Wadsworth Pub. Co, 1969.