एपीए उद्धरण

Sharma, A. K. (2012). Biological diversity. viva books.

शिकागो स्टाइल उद्धरण

Sharma, Arun Kumar. Biological Diversity. new delhi: viva books, 2012.

एमएलए उद्धरण

Sharma, Arun Kumar. Biological Diversity. viva books, 2012.