एपीए उद्धरण

Smith, T. M. (2015). Elements of ecology. Harlow, Essex: Pearson Education.

शिकागो स्टाइल उद्धरण

Smith, Thomas M. Elements of Ecology. Harlow, Essex: Pearson Education, 2015.

एमएलए उद्धरण

Smith, Thomas M. Elements of Ecology. Harlow, Essex: Pearson Education, 2015.