TY  - BOOK
AU  - Sparks D L
TI  - Methods of Soil Analysis Part 3:Chemical method
SN  - 0891188258
U1  - 631.412/SPA 
PY  - 2001///
CY  - USA
PB  - Soil Science Society of America
KW  - Soil physical chemistry
KW  - Soils--Analysis
ER  -