TY  - BOOK
AU  - Earl  O. Heady
AU  -  John  L. Dillon, 
TI  - Agricultural production function
U1  - 338.1 
PY  - 1961///
CY  - Ludhiana
PB  - Kalyani Publishers
N1  - Earl  O. Heady & John  L. Dillon: Agricultural production function.  Ludhiana.  Ames.  Kalyani Publishers, Lowa state university press, 1961.--(338.1HEA)
ER  -