Bear, F. E. (1964). Chemistry of the soil (2nd edition.). Chapman & Hall.
Cita Chicago Style (17a ed.)Bear, Firman E. Chemistry of the Soil. 2nd edition. New York: Chapman & Hall, 1964.
Cita MLA (8a ed.)Bear, Firman E. Chemistry of the Soil. 2nd edition. Chapman & Hall, 1964.
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