Dyfyniad APA

Dooley, D. (1984). Social research methods (2nd ed.). Prentice-Hall.

Dyfyniad Arddull Chicago

Dooley, David. Social Research Methods. 2nd ed. Englewood Cliffs, N.J: Prentice-Hall, 1984.

Dyfyniad MLA

Dooley, David. Social Research Methods. 2nd ed. Prentice-Hall, 1984.

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