Hilgard, E. Soils their formation, properties, composition and relations to climate and plant growth in the humid and arid regions. New York: The Macmillan Company, 1918 XXVII, 593 p. : ill.
Hilgard, E. Soils their formation, properties, composition and relations to climate and plant growth in the humid and arid regions. New York: The Macmillan Company, 1918 XXVII, 593 p. : ill.
Hilgard, E. (1918) Soils their formation, properties, composition and relations to climate and plant growth in the humid and arid regions, New York: The Macmillan Company XXVII, 593 p. : ill.
Hilgard, E. (1918). Soils their formation, properties, composition and relations to climate and plant growth in the humid and arid regions. New York: The Macmillan Company, XXVII, 593 p. : ill.
Hilgard E. Soils their formation, properties, composition and relations to climate and plant growth in the humid and arid regions. New York: The Macmillan Company; 1918. p. XXVII, 593 p. : ill.
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