TY  - BOOK
AU  -  Bartels , J. M.
AU  - J. M. Bigham .
TI  - Methods of soil analysis: Pat 3 -Chemical Methods
SN  - 9780891188254
U1  - 631.4 
PY  - 1996///
CY  - USA
PB  - SSSA
KW  - soil analysis
N1  - Includes bibliography references and index; pat- 3
ER  -