TY  - BOOK
AU  - Khasawneh, F E., ed.
TI  - The role of phosphorus in agriculture
SN  - 089118062 1
U1  - 631.485/KHA 
PY  - 1980///
CY  - Madison
PB  - American Society of Agronomy
KW  - Phosphate industry
KW  - Phosphatic fertilizers
ER  -