TY  - BOOK
AU  - Stevenson, F. J.,
TI  - Cycles of Soil : Carbon, Nitrogen, Phosphorus, Sulfur, Micronutrients
SN  - 0471822183
U1  - 631 
PY  - 1986///
CY  - New York
PB  - John Wiley & Sons, Inc.
KW  - Soil Cycles
KW  - Soil Science
KW  - Techniques, equipment & materials
ER  -