एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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