एपीए उद्धरण

Lal B Suresh. (2011). Current environmental issues and challenges. Serial publications.

शिकागो स्टाइल उद्धरण

Lal B Suresh. Current Environmental Issues and Challenges. New Delhi: Serial publications, 2011.

एमएलए उद्धरण

Lal B Suresh. Current Environmental Issues and Challenges. Serial publications, 2011.