TY  - GEN
AU  - Singer, Michael J.
TI  - Soils: an introduction 
SN  - 0136792421
U1  - 631.4 SIN 
PY  - 1999///
CY  - Upper Saddle River, NJ
PB  - Prentice Hall
KW  - Soil science
KW  - Soils
KW  - Plant-soil relationships
KW  - Soil management
ER  -