TY  - BOOK
AU  - Orlov,D.S.
TI  - Humus acids of soils
PY  - 1985///
CY  - Rotterdam
PB  - A.A.Balkema
KW  - Humus
KW  - Soils
KW  - Composition
N1  - Translation of : Gumusovye kisloty pochv. Moscow : Moscow University Publishers, 1974
ER  -