TY  - BOOK
AU  - SMITH, J
TI  - Production risk and optimal fertilizer rates : an application of the random Coefficient model
U1  - 338.173 18 S55P 
PY  - 1985///
PB  - Manila, Philippines, Int
KW  - RICE -- FERTILIZER AND MANURES
KW  - FERTILIZERS AND MANURES -- ECONOMIC ASPECT
ER  -