APA引文

Stephen R Chapman. (1976). Crop production: Principles and practices. San Francisco: W.H.Freeman and Company.

Trích dẫn kiểu Chicago

Stephen R Chapman. Crop Production: Principles and Practices. San Francisco: W.H.Freeman and Company, 1976.

MLA引文

Stephen R Chapman. Crop Production: Principles and Practices. San Francisco: W.H.Freeman and Company, 1976.

警告：這些引文格式不一定是100％准確.