Gaya APA

Rosenthal, R., Rosnow, R, L. (1991). Essentials of Behavioral Research : Methods and Data Analysis (2). Amerika: Mc.Graw Hil.

Gaya MLA

Rosenthal, Robert., Rosnow, Ralph, L.. "Essentials of Behavioral Research : Methods and Data Analysis". 2 Amerika: Mc.Graw Hil, 1991. Text.