TY  - BOOK
AU  - EARL O HEADY
TI  - AGRICULTURAL PRODUCTION FUNCTIONS
U1  - TX338.1 H345A 
PY  - 1961///
CY  - NEW DELHI
PB  - Kalyani Publishers
KW  - AGRICULTURAL PRODUCTION FUNCTIONS
N1  - MODERN BOOK HOUSE, JBP
ER  -