Dyfyniad APA
Zinsser, W. (1994). On writing well: An informal guide to writing nonfiction (5ft ed.). Harper & Row.
Dyfyniad Arddull Chicago
Zinsser, William. On Writing Well: An Informal Guide to Writing Nonfiction. 5ft ed. New York: Harper & Row, 1994.
Dyfyniad MLA
Zinsser, William. On Writing Well: An Informal Guide to Writing Nonfiction. 5ft ed. Harper & Row, 1994.
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