TY  - BOOK
AU  - Heady,Earl Orel
AU  - Dillon,John L.
TI  - Agricultural production functions
AV  - S561 .H39
U1  - 631.5 
PY  - 1961///
CY  - Ludhiana
PB  - Kalyani Publishers, 
KW  - Agriculture
KW  - Economic aspects
KW  - Mathematical models
KW  - Farm management
ER  -