Dyfyniad APA

DeVaus, D. A. (1995). Surveys in social research (4th ed.). North Sydney: Allen and Unwin.

Dyfyniad Arddull Chicago

DeVaus, D. A. Surveys in Social Research. 4th ed. North Sydney: Allen and Unwin, 1995.

Dyfyniad MLA

DeVaus, D. A. Surveys in Social Research. 4th ed. North Sydney: Allen and Unwin, 1995.

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