TY  - BOOK
AU  - Sparks,Donald L.
TI  - Methods of soil analysis: Part 3, Chemical methods 
SN  - 9780891188254
U1  - 631.4 
PY  - 2009///
CY  - Madison, Wis.
PB  - Soil Science Society of America ; American Society of Agronomy
KW  - Soils--Analysis
KW  - Soil physical chemistry
N1  - Includes bibliographical references and index
ER  -