Acker, D., & Cunningham, M. (1991). Animal science and industry (4th ed.). Prentice Hall.
Čikaški stil citiranja (17. izdanje)Acker, Duane, i Merle Cunningham. Animal Science and Industry. 4th ed. Englewood Cliffs, N.J: Prentice Hall, 1991.
MLA način citiranja (9. izdanje)Acker, Duane, i Merle Cunningham. Animal Science and Industry. 4th ed. Prentice Hall, 1991.
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