Citazione Stile APA (7a Edizione)

Hedgepeth William, Al, C., & Findley John Drawings by. (1978). The hog book. Dolphin Books.

Citazione stile Chigago Style (17a edizione)

Hedgepeth William, Clayton Al, e Findley John Drawings by. The Hog Book. New York: Dolphin Books, 1978.

Citatione MLA (9a ed.)

Hedgepeth William, et al. The Hog Book. Dolphin Books, 1978.