Small, J. (1954). Modern aspects of ph: With special reference of plants and soils. New York: D. Van Nostrand.
Παραπομπή Chicago StyleSmall, James. Modern Aspects of Ph: With Special Reference of Plants and Soils. New York: D. Van Nostrand, 1954.
Παραπομπή MLASmall, James. Modern Aspects of Ph: With Special Reference of Plants and Soils. New York: D. Van Nostrand, 1954.
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