एपीए उद्धरण

Agarwal, O. P. (1985). Engineering chemistry. Khanna.

शिकागो स्टाइल उद्धरण

Agarwal, O P. Engineering Chemistry. Delhi: Khanna, 1985.

एमएलए उद्धरण

Agarwal, O P. Engineering Chemistry. Khanna, 1985.