Dyfyniad APA

David W.Stewart. (1984). Secondary Research Information Sources and Methods.

Dyfyniad Arddull Chicago

David W.Stewart. Secondary Research Information Sources and Methods. Sage Publications, New Delhi, 1984.

Dyfyniad MLA

David W.Stewart. Secondary Research Information Sources and Methods. 1984.

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