APA引文

(1982). Nitrogen in agricultural soils. Wisconsin, USA: American Society of Agronomy, Inc.

Trích dẫn kiểu Chicago

Nitrogen in Agricultural Soils. Wisconsin, USA: American Society of Agronomy, Inc, 1982.

MLA引文

Nitrogen in Agricultural Soils. Wisconsin, USA: American Society of Agronomy, Inc, 1982.

警告：這些引文格式不一定是100％准確.