Heady, Earl O. Economic models and quantitative methods for decisions and planning in agriculture : proceedings of an East-West seminar / Earl O. Heady - Iowa : Iowa State University, c1971. - xiii, 518 p. : ill. ; 24 cm. ISBN: 0813805406 LCCN: Subjects--Topical Terms: AgricultureEconomic aspectsCongresses. AgricultureEconomic aspects LC Class. No.: HD1405 / .E26 1971 Dewey Class. No.: 338.10184