Gaya APA

Adler, E, S., Clark, R. (c2003). How it's done: an invitation to social research (2nd ed.). cau: Wadsworth/Thomson Learning.

Gaya MLA

Adler, Emily, Stier.., Clark, Roger. "How it's done: an invitation to social research". 2nd ed. cau: Wadsworth/Thomson Learning, c2003. .