APA (7th ed.) Zitazioa
Madhukar, R. (2001). Business communication and customer relations. Vikas Pub.
Chicago Style (17th ed.) Zitazioa
Madhukar, R.K. Business Communication and Customer Relations. New Delhi: Vikas Pub, 2001.
MLA (9th ed.) Zitazioa
Madhukar, R.K. Business Communication and Customer Relations. Vikas Pub, 2001.
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