Cita APA (7th ed.)

Knutson, R. D., Penn, J. B., & Boehm, W. T. (1995). Agricultural and food policy (3rd ed.). Prentice Hall Education, Career & Technology.

Cita Chicago (17th ed.)

Knutson, Ronald D., J. B. Penn, i William T. Boehm. Agricultural and Food Policy. 3rd ed. Englewood Cliffs, N.J: Prentice Hall Education, Career & Technology, 1995.

Cita MLA (9th ed.)

Knutson, Ronald D., et al. Agricultural and Food Policy. 3rd ed. Prentice Hall Education, Career & Technology, 1995.