Economic models and quantitative methods for decisions and planning agriculture
Heady, Earl O, ed.
Economic models and quantitative methods for decisions and planning agriculture - U S A The Iowa state university press 1971 - xiii, 518p.; 22cm.
813805406
Economic models and quantitative methods for decisions and planning agriculture - U S A The Iowa state university press 1971 - xiii, 518p.; 22cm.
813805406