Dyfyniad APA

Johnson, J. (1978). Doing field research. Free press.

Dyfyniad Arddull Chicago

Johnson, John. Doing Field Research. New York: Free press, 1978.

Dyfyniad MLA

Johnson, John. Doing Field Research. Free press, 1978.

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