00767nam a22002297a 4500 20181210003435.0 720131s1961 ii 000 0 eng 60011128 (OCoLC)230607 BD-DhBPA BD-DhBPA S561 .H39 631.5 HEA 1961 Heady, Earl Orel, 1916- 43994 Agricultural production functions / [by] Earl O. Heady [and] John L. Dillon. Ludhiana : Kalyani Publishers, 1961. 667 p. : illus. ; 24 cm. Newaz Agriculture Economic aspects Mathematical models. 52072 Farm management Mathematical models. 52073 Dillon, John L., joint author. 9947 ddc BK 17821 17821 0 ddc 0 0 BPATC BPATC GEN 2018-04-12 0 631.5 HEA 1961 24327 2018-04-12 00:00:00 2018-04-12 BK Newaz