Cita APA

(1980). The role of phosphorus in agriculture. Madison, Wis: American Society of Agronomy.

Chicago Style Citation

The Role of Phosphorus in Agriculture. Madison, Wis: American Society of Agronomy, 1980.

Cita MLA

The Role of Phosphorus in Agriculture. Madison, Wis: American Society of Agronomy, 1980.

Atenció: Aquestes cites poden no estar 100% correctes.