APA (7th ed.) Zitazioa
Swenson, J. (1988). Writing fitness: Practical exercises for better business writing. Crisp.
Chicago Style (17th ed.) Zitazioa
Swenson, Jack. Writing Fitness: Practical Exercises for Better Business Writing. Los Altos, Calif.: Crisp, 1988.
MLA (9th ed.) Zitazioa
Swenson, Jack. Writing Fitness: Practical Exercises for Better Business Writing. Crisp, 1988.
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