Kellogg, C. E. (1941). The soils that support us; an introduction to the study of soils and their use by men. Macmillan.
Citace podle Chicago (17th ed.)Kellogg, Charles Edwin. The Soils That Support Us; an Introduction to the Study of Soils and Their Use by Men. New York: Macmillan, 1941.
Citace podle MLA (9th ed.)Kellogg, Charles Edwin. The Soils That Support Us; an Introduction to the Study of Soils and Their Use by Men. Macmillan, 1941.
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