APA (7th ed.) Zitazioa

Craig James R. (1986). Methods of Psychological research (2nd ed.). Cole Publ. Co..

Chicago Style (17th ed.) Zitazioa

Craig James R. Methods of Psychological Research. 2nd ed. California: Cole Publ. Co., 1986.

MLA (9th ed.) Zitazioa

Craig James R. Methods of Psychological Research. 2nd ed. Cole Publ. Co., 1986.