Dyfyniad APA

Doby, J. T. (1967). An introduction to social research (2d ed.). Appleton Century-Crofts.

Dyfyniad Arddull Chicago

Doby, J. T. An Introduction to Social Research. 2d ed. New York: Appleton Century-Crofts, 1967.

Dyfyniad MLA

Doby, J. T. An Introduction to Social Research. 2d ed. Appleton Century-Crofts, 1967.

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