Cita APA (7a ed.)

Bartholomew, W. V. (1965). Soil nitrogen. Américan Society of Agronomy.

Cita Chicago Style (17a ed.)

Bartholomew, W. V. Soil Nitrogen. Madison, Wisconsin: Américan Society of Agronomy, 1965.

Cita MLA (8a ed.)

Bartholomew, W. V. Soil Nitrogen. Américan Society of Agronomy, 1965.