TY  - BOOK
ED  - A Symposium on Soil Organic Matter Studies :
TI  - Soil organic matter studies: proceedings
SN  - 9200101775
U1  - 631.417 21st ed.
PY  - 1977///
CY  - Vienna
PB  - International Atomic Energy Agency
KW  - Humus
KW  - Soil science
ER  -