Citazione Stile APA (7a Edizione)

Fenton, C. L. (1953). Prehistoric World: Stories of animal life in part ages. The John Day Company.

Citazione stile Chigago Style (17a edizione)

Fenton, Carroll Lane. Prehistoric World: Stories of Animal Life in Part Ages. Nueva York: The John Day Company, 1953.

Citatione MLA (9a ed.)

Fenton, Carroll Lane. Prehistoric World: Stories of Animal Life in Part Ages. The John Day Company, 1953.