Dyfyniad APA

McCrimmon, J. M. (1967). Writing with a purpose. Boston: Houghton Mifflin Company.

Dyfyniad Arddull Chicago

McCrimmon, James M. Writing With a Purpose. Boston: Houghton Mifflin Company, 1967.

Dyfyniad MLA

McCrimmon, James M. Writing With a Purpose. Boston: Houghton Mifflin Company, 1967.

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