APA
Chopra H., . (1996). Information Marketing. New Delhi: Rawat Publications.
Chicago
Chopra H.S, . 1996. Information Marketing. New Delhi: Rawat Publications.
Harvard
Chopra H., . (1996). Information Marketing. New Delhi: Rawat Publications.
MLA
Chopra H.S, . Information Marketing. New Delhi: Rawat Publications. 1996.