Dyfyniad APA
Das Gupta, V. (1998). Marketing mantra: The real story of direct marketing in India. Prentice-Hall of India.
Dyfyniad Arddull Chicago
Das Gupta, Vaswar. Marketing Mantra: The Real Story of Direct Marketing in India. New Delhi: Prentice-Hall of India, 1998.
Dyfyniad MLA
Das Gupta, Vaswar. Marketing Mantra: The Real Story of Direct Marketing in India. Prentice-Hall of India, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.