00952nam0-22002891i-450-99000385746040332120100118165033.00-8138-0540-6000385746FED01000385746(Aleph)000385746FED0100038574620030910d1971----km-y0itay50------baengUSEconomic models and quantitative methods for decisions and planning in agricultureproceedings of an East-West Seminaredited by Earl O. HeadyAmes, IowaIowa State University Press1971xiii, 518 p.24 cmPolitica agrariaHeady,Earl Orel<1916- >ITUNINARICAUNIMARCBK990003857460403321H/1.14 ECO/713271/ISESSESEconomic models and quantitative methods for decisions and planning in agriculture515088UNINA