APA引文

Knutson, R. D. (1998). Agricultural and food policy. New Jersey: Prentice Hall.

Trích dẫn kiểu Chicago

Knutson, Ronald D. Agricultural and Food Policy. New Jersey: Prentice Hall, 1998.

MLA引文

Knutson, Ronald D. Agricultural and Food Policy. New Jersey: Prentice Hall, 1998.

警告:這些引文格式不一定是100%准確.