Dyfyniad APA

On writing well: An informal guide to writing nonfiction. (1987). On writing well: An informal guide to writing nonfiction. New York: Harper and Row.

Dyfyniad Arddull Chicago

On writing well: An informal guide to writing nonfiction. On Writing Well: An Informal Guide to Writing Nonfiction. New York: Harper and Row, 1987.

Dyfyniad MLA

On writing well: An informal guide to writing nonfiction. On Writing Well: An Informal Guide to Writing Nonfiction. New York: Harper and Row, 1987.

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