एपीए उद्धरण

Chopra, H. K., & Parmar, A. (2007). Engineering chemistry: A textbook. Narosa Publishing House.

शिकागो स्टाइल उद्धरण

Chopra, Harish Kumar, और Anupama Parmar. Engineering Chemistry: A Textbook. New Delhi: Narosa Publishing House, 2007.

एमएलए उद्धरण

Chopra, Harish Kumar, और Anupama Parmar. Engineering Chemistry: A Textbook. Narosa Publishing House, 2007.