Acker, D., & Cunningham, M. (1991). Animal science and industry (4th ed.). Prentice Hall.
芝加哥风格引文Acker, Duane, 与 Merle Cunningham. Animal Science and Industry. 4th ed. Englewood Cliffs, N.J: Prentice Hall, 1991.
MLA引文Acker, Duane, 与 Merle Cunningham. Animal Science and Industry. 4th ed. Prentice Hall, 1991.
警告：这些引文格式不一定是100％准确.