एपीए उद्धरण

SK Ahluwalia. (2005). Environment problems in India. ABD Publishers.

शिकागो स्टाइल उद्धरण

SK Ahluwalia. Environment Problems in India. Jaipur: ABD Publishers, 2005.

एमएलए उद्धरण

SK Ahluwalia. Environment Problems in India. ABD Publishers, 2005.