एपीए उद्धरण

Baldev Kumar & Harish Kumar Chopra. (2005). Biogenesis of natural products. Narosa publishing.

शिकागो स्टाइल उद्धरण

Baldev Kumar और Harish Kumar Chopra. Biogenesis of Natural Products. New Delhi: Narosa publishing, 2005.

एमएलए उद्धरण

Baldev Kumar और Harish Kumar Chopra. Biogenesis of Natural Products. Narosa publishing, 2005.