APA (7e ed.) Bronvermelding
Das Gupta, V. (1998). Marketing mantra: The real story of direct marketing in India. Prentice-Hall of India.
Chicago (17e ed.) Bronvermelding
Das Gupta, Vaswar. Marketing Mantra: The Real Story of Direct Marketing in India. New Delhi: Prentice-Hall of India, 1998.
MLA (9e ed.) Bronvermelding
Das Gupta, Vaswar. Marketing Mantra: The Real Story of Direct Marketing in India. Prentice-Hall of India, 1998.
Let op: Deze citaties zijn niet altijd 100% accuraat.