Dyfyniad APA

Forcese, D. (1973). Social research methods. Prentice Hall.

Dyfyniad Arddull Chicago

Forcese, D. Social Research Methods. Wood Clifts: Prentice Hall, 1973.

Dyfyniad MLA

Forcese, D. Social Research Methods. Prentice Hall, 1973.

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