TY  - BOOK
AU  - Weaver R W
TI  - methods of soil analysis Part2:Microbiological and biochemical propertices
U1  - 631.4/WEA 
PY  - 1999///
CY  - USA
PB  - Soil Science Society of America
KW  - Soil physical chemistry
KW  - Soils--Analysis
ER  -