APA引文

George W Cox. (1979). Agricultural ecology. San Francisco: W.H.Freeman and Company.

Trích dẫn kiểu Chicago

George W Cox. Agricultural Ecology. San Francisco: W.H.Freeman and Company, 1979.

MLA引文

George W Cox. Agricultural Ecology. San Francisco: W.H.Freeman and Company, 1979.

警告：這些引文格式不一定是100％准確.