APA-viite

Spellerberg, I. F. (1982). Biology of reptiles: An ecological approach.

Chicago-tyylinen lähdeviittaus

Spellerberg, Ian F. Biology of Reptiles: An Ecological Approach. Blackie & Son, London, 1982.

MLA-viite

Spellerberg, Ian F. Biology of Reptiles: An Ecological Approach. 1982.