TY  - BOOK
AU  - Soon, Y K., ed.
TI  - Soil nutrient availability chemistry and concepts
SN  - 0442281234
U1  - 631.422/SOO 
PY  - 1985///
CY  - New York
PB  - VAN Nostrand Reinhold Company
KW  - Plant-soil relationships
KW  - Soil fertility
ER  -