APA (7th ed.) Zitazioa
Markel, M. H. (1988). Technical writing essentials. St. Martin's.
Chicago Style (17th ed.) Zitazioa
Markel, Michael H. Technical Writing Essentials. New York: St. Martin's, 1988.
MLA (9th ed.) Zitazioa
Markel, Michael H. Technical Writing Essentials. St. Martin's, 1988.
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