एपीए उद्धरण

PAUL DRIESSEN. (2001). Lecture notes on the major soils of the world. Rome, Italy: FAO.

शिकागो स्टाइल उद्धरण

PAUL DRIESSEN. Lecture Notes On the Major Soils of the World. Rome, Italy: FAO, 2001.

एमएलए उद्धरण

PAUL DRIESSEN. Lecture Notes On the Major Soils of the World. Rome, Italy: FAO, 2001.