Citazione Stile APA (7a Edizione)

Acker, D., & Cunningham, M. (1991). Animal science and industry (4th ed.). Prentice Hall.

Citazione stile Chigago Style (17a edizione)

Acker, Duane, e Merle Cunningham. Animal Science and Industry. 4th ed. Englewood Cliffs, N.J: Prentice Hall, 1991.

Citatione MLA (9a ed.)

Acker, Duane, e Merle Cunningham. Animal Science and Industry. 4th ed. Prentice Hall, 1991.