APA引文

Kohls, R. L. (2002). Marketing of agricultural products. Upper Saddle River, NJ: Prentice Hall.

Trích dẫn kiểu Chicago

Kohls, Richard L. Marketing of Agricultural Products. Upper Saddle River, NJ: Prentice Hall, 2002.

MLA引文

Kohls, Richard L. Marketing of Agricultural Products. Upper Saddle River, NJ: Prentice Hall, 2002.

警告：这些引文格式不一定是100％准确.