Knutson, R. D., Penn, J. B., & Boehm, W. T. (1995). Agricultural and food policy (3rd ed.). Prentice Hall Education, Career & Technology.
Chicagoスタイル(17版)引用形式Knutson, Ronald D., J. B. Penn, , William T. Boehm. Agricultural and Food Policy. 3rd ed. Englewood Cliffs, N.J: Prentice Hall Education, Career & Technology, 1995.
MLA(9版)引用形式Knutson, Ronald D., et al. Agricultural and Food Policy. 3rd ed. Prentice Hall Education, Career & Technology, 1995.
警告: この引用は必ずしも正確ではありません.