Cita APA (7th ed.)

OLSON, G. W. (1981). Soils and the environment: Aguide to soil surveys andtheir applications. Champman and Hall.

Cita Chicago (17th ed.)

OLSON, Gerald W. Soils and the Environment: Aguide to Soil Surveys Andtheir Applications. New York: Champman and Hall, 1981.

Cita MLA (9th ed.)

OLSON, Gerald W. Soils and the Environment: Aguide to Soil Surveys Andtheir Applications. Champman and Hall, 1981.

Atenció: Aquestes cites poden no estar 100% correctes.