APA (7th ed.) Zitazioa
Romero, D. B. (1991). Clear writing: A step-by-step guide. Crisp Publications.
Chicago Style (17th ed.) Zitazioa
Romero, Diana Bonet. Clear Writing: A Step-by-step Guide. Los Altos, Calif.: Crisp Publications, 1991.
MLA (9th ed.) Zitazioa
Romero, Diana Bonet. Clear Writing: A Step-by-step Guide. Crisp Publications, 1991.
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