Dyfyniad APA

McCormick, M. (1979). The New York times guide to reference materials =: Riginal title, Who-what-when-where-how-why-made easy. New York: Popular Library.

Dyfyniad Arddull Chicago

McCormick, Mona. The New York Times Guide to Reference Materials =: Riginal Title, Who-what-when-where-how-why-made Easy. New York: Popular Library, 1979.

Dyfyniad MLA

McCormick, Mona. The New York Times Guide to Reference Materials =: Riginal Title, Who-what-when-where-how-why-made Easy. New York: Popular Library, 1979.

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