Dyfyniad APA

David Nachmias Chava Nachmias. (1976). Research methods in the social sciences. Edward arnold.

Dyfyniad Arddull Chicago

David Nachmias Chava Nachmias. Research Methods in the Social Sciences. London: Edward arnold, 1976.

Dyfyniad MLA

David Nachmias Chava Nachmias. Research Methods in the Social Sciences. Edward arnold, 1976.

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