Cita APA

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

Chicago Style Citation

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

Cita MLA

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

Atenció: Aquestes cites poden no estar 100% correctes.