00940nam0-22003011i-450-99000385545040332120090408160347.0000385545FED01000385545(Aleph)000385545FED0100038554520030910d1975----km-y0itay50------baengUSAgricultural research and productivityRobert E. Evenson and Yoav KislevNew HavenYale University PressLondon1975XI, 204 p.22 cm<<A >>publication of the Economic Growth Center, Yale UniversityH/1.111Evenson,Robert E.<Robert Eugene ;1934- >89186Kislev,Yoav146153ITUNINARICAUNIMARCBK990003855450403321H/1.111 EVE7170/ISESSESAgricultural research and productivity514823UNINA