Soils :

Hilgard, E.W.

Soils : their formation, properties, composition, and relations to climate and plant growth in the humid and arid regions [by] E. W. Hilgard - London : Macmilan , 1906 - xxvii, 549p ; 20cm

553-93 includes index

Soil formation Soils-Composition

631.4 / HIL/S

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