एपीए उद्धरण

Chatwal,Gurdeep R. (1988). Organic chemistry of natural products (3rd ed.). Himalaya publishing house.

शिकागो स्टाइल उद्धरण

Chatwal,Gurdeep R. Organic Chemistry of Natural Products. 3rd ed. New Delhi: Himalaya publishing house, 1988.

एमएलए उद्धरण

Chatwal,Gurdeep R. Organic Chemistry of Natural Products. 3rd ed. Himalaya publishing house, 1988.