http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Humic substances of soils and general theory of humification
Gumusovye kisloti pochv i obshchai︠a︡ teorii︠a︡ gumifikat︠s︡ii. English
viii, 323 pages : illustrations ; 25 cm.
Revised for the English transl. by the author in Oct., 1992, with considerable data on soils specific to the former USSR deleted.
Rev. translation of: Gumusovye kisloti pochv i obshchai︠a︡ teorii︠a︡ gumifikat︠s︡ii. 1990.
Includes bibliographical references (pages 281-323).