APA-viite

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

Chicago-tyylinen lähdeviittaus

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

MLA-viite

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