APA
Diwan P., Sharma S., . (2000). Electronic commerce. New Delhi: Vanity Books International.
Chicago
Diwan Parag, Sharma Sunil, . 2000. Electronic commerce. New Delhi: Vanity Books International.
Harvard
Diwan P., Sharma S., . (2000). Electronic commerce. New Delhi: Vanity Books International.
MLA
Diwan Parag, Sharma Sunil, . Electronic commerce. New Delhi: Vanity Books International. 2000.