एपीए उद्धरण

Easa P S. (2003). Biodiversity documentation for Kerala: Birds. Kerala forest research institute.

शिकागो स्टाइल उद्धरण

Easa P S. Biodiversity Documentation for Kerala: Birds. Kerala: Kerala forest research institute, 2003.

एमएलए उद्धरण

Easa P S. Biodiversity Documentation for Kerala: Birds. Kerala forest research institute, 2003.