Dyfyniad APA

(1969). A manual of style: For authors, editors and copywriters. Chicago: University of Chicago Press.

Dyfyniad Arddull Chicago

A Manual of Style: For Authors, Editors and Copywriters. Chicago: University of Chicago Press, 1969.

Dyfyniad MLA

A Manual of Style: For Authors, Editors and Copywriters. Chicago: University of Chicago Press, 1969.

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