एपीए उद्धरण

Sivashanmugam, P. (2007). Basics of Environmental science and Engineering.

शिकागो स्टाइल उद्धरण

Sivashanmugam, P. Basics of Environmental Science and Engineering. New Delhi, New India Publishing Agency, 2007.

एमएलए उद्धरण

Sivashanmugam, P. Basics of Environmental Science and Engineering. 2007.