APA引文

Camp, W. G. (2009). Managing our natural resources. Clifton Park, NY: Delmar Cengage Learning.

Trích dẫn kiểu Chicago

Camp, William G. Managing Our Natural Resources. Clifton Park, NY: Delmar Cengage Learning, 2009.

MLA引文

Camp, William G. Managing Our Natural Resources. Clifton Park, NY: Delmar Cengage Learning, 2009.

警告：這些引文格式不一定是100％准確.