Dyfyniad APA

Willingham, J. R., & Warders, D. F. (1978). A handbook for student writers. Harcourt Brace Jovanovich.

Dyfyniad Arddull Chicago

Willingham, John R., and Donald F. Warders. A Handbook for Student Writers. New York: Harcourt Brace Jovanovich, 1978.

Dyfyniad MLA

Willingham, John R., and Donald F. Warders. A Handbook for Student Writers. Harcourt Brace Jovanovich, 1978.

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