APA Citation

Hilgard, E. W. (1918). Soils: Their formation, properties, composition, and relations to climate and plant growth in the humid and arid regions. New York: The Macmillan Company.

Chicago Style Citation

Hilgard, E. W. Soils: Their Formation, Properties, Composition, and Relations to Climate and Plant Growth in the Humid and Arid Regions. New York: The Macmillan Company, 1918.

MLA Citation

Hilgard, E. W. Soils: Their Formation, Properties, Composition, and Relations to Climate and Plant Growth in the Humid and Arid Regions. New York: The Macmillan Company, 1918.

Warning: These citations may not always be 100% accurate.