BERGER, K. C. (1965). Introductory soils.: Kermit C. Berger. Macmillan.
Tohutoru Kātū Chicago (17th ed.)BERGER, Kermit C. Introductory Soils.: Kermit C. Berger. New York: Macmillan, 1965.
Tohutoro MLA (9th ed.)BERGER, Kermit C. Introductory Soils.: Kermit C. Berger. Macmillan, 1965.
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