Dyfyniad APA

BABBIE, E. (1989). The Practice Of Social Research Earl Babbie. Wadsworth Publishing.

Dyfyniad Arddull Chicago

BABBIE, Earl. The Practice Of Social Research Earl Babbie. Wadsworth Publishing, 1989.

Dyfyniad MLA

BABBIE, Earl. The Practice Of Social Research Earl Babbie. Wadsworth Publishing, 1989.

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