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The Encyclopedia of Soil Science provides a comprehensive, alphabetical treatment of basic soil science in a single volume. It constitutes a wide ranging and authoratative collection of about 160 academic articles covering the salient aspects of soil physics, chemistry, biology, fertility, technology, genesis, morphology, classification and geomorphology.
The third edition of this comprehensive encyclopedic dictionary covers the whole field of physical geography and provides an essential reference for all students and lecturers in this field. Many of the entries are new or have been fully revised, with a large amount of additional material on relevant new themes and topics. The Dictionary includes coverage of geomorphology, climatology, biogeography, zoogeography, hydrology, pedology, the Quarternary, GIS, remote sensing and the human impact.
Encyclopedia of Soil Science by 
The Dictionary of Physical Geography by 