Dyfyniad APA

Babbie, E. (2014). The Basics of social research (6th ed.). Wadsworth.

Dyfyniad Arddull Chicago

Babbie, Earl. The Basics of Social Research. 6th ed. Australia: Wadsworth, 2014.

Dyfyniad MLA

Babbie, Earl. The Basics of Social Research. 6th ed. Wadsworth, 2014.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.