APA引文

Knutson, R. D., Penn, J. B., & Boehm, W. T. (1990). Agricultural and food policy (2nd ed.). Prentice Hall.

Chicago Style (17th ed.) Citation

Knutson, Ronald D., J. B. Penn, and William T. Boehm. Agricultural and Food Policy. 2nd ed. Englewood Cliffs, N.J.: Prentice Hall, 1990.

MLA引文

Knutson, Ronald D., et al. Agricultural and Food Policy. 2nd ed. Prentice Hall, 1990.