Παραπομπή APA

Gravetter, F. J., & Forzano, L. B. (2006). Research methods for the behavioral sciences (2nd ed.). Thomson/Wadsworth.

Παραπομπή Chicago Style

Gravetter, Frederick J., και Lori-Ann B. Forzano. Research Methods for the Behavioral Sciences. 2nd ed. Australia ; Belmont, CA: Thomson/Wadsworth, 2006.

Παραπομπή MLA

Gravetter, Frederick J., και Lori-Ann B. Forzano. Research Methods for the Behavioral Sciences. 2nd ed. Thomson/Wadsworth, 2006.