APA引文

Knutson, R. D. (1983). Agricultural and food policy. Englewood Cliffs: Prentce-Hall.

Trích dẫn kiểu Chicago

Knutson, Ronald D. Agricultural and Food Policy. Englewood Cliffs: Prentce-Hall, 1983.

MLA引文

Knutson, Ronald D. Agricultural and Food Policy. Englewood Cliffs: Prentce-Hall, 1983.

警告：這些引文格式不一定是100％准確.