APA-referens

Parker, G. H. Animal colours changes and their neurohumours. Cambridge university press.

Chicago-stil citat

Parker, George Howard. Animal Colours Changes and Their Neurohumours. Cambridge university press.

MLA-referens

Parker, George Howard. Animal Colours Changes and Their Neurohumours. Cambridge university press.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.