TY  - BOOK
AU  - Khasawneh, F.E
AU  - Kamprath, E.J
AU  - Sample, E.C
TI  - The role of phosphorus in agriculture
SN  - 0891180621
U1  - 631.85 
PY  - 1980///
CY  - Wisconsin
PB  - American Society of Agronomy
KW  - PHOSPHORUS FERTILIZERS
ER  -