Citazione Stile APA (7a Edizione)

Parker, G. H. (1948). Animal colour changes and their neurohumours: A survey of investigations, 1910-1943. Camb. U.P..

Citazione stile Chigago Style (17a edizione)

Parker, George Howard. Animal Colour Changes and Their Neurohumours: A Survey of Investigations, 1910-1943. Camb.: Camb. U.P., 1948.

Citatione MLA (8a ed.)

Parker, George Howard. Animal Colour Changes and Their Neurohumours: A Survey of Investigations, 1910-1943. Camb. U.P., 1948.