01106cam a2200301 i 4500 3623486 BD-DhUL 20170320102218.0 750827s1975 ctua b 001 0 eng 74015210 0300018150 : $12.50. 0300018770 $3.95 DLC BD-DhUL BD-DhUL S540.A2 E9 338.072 KHR Evenson, Robert E. (Robert Eugene), 1934- research and productivity / Robert E. Evenson and Yoav Kislev. New Haven : Yale University Press, 1975. 143 p. : ill. ; 25 cm. A Publication of the Economic Growth Center, Yale University Includes index. Bibliography: p. 195-200. Agriculture Research Economic aspects Mathematical models. Agriculture Economic aspects Mathematical models. Kislev, Yoav, 1932- joint author. Publication of the Economic Growth Center, Yale University. 7 cbc orignew 2 ocip 19 y-gencatlg ddc BK 165660 165660 0 0 ddc 0 338_072000000000000_KHR 1 REF 299863 DUL DUL RC 2017-03-20 338.072 KHR 6208 2017-03-20 2017-03-20 BK 0 0 ddc 0 338_072000000000000_KHR 1 REF 299864 DUL DUL RC 2017-03-20 338.072 KHR A89559 2017-03-20 2017-03-20 BK 0 0 ddc 0 338_072000000000000_KHR 1 REF 299892 DUL DUL RC 2017-03-20 338.072 KHR A117021 2017-03-20 2017-03-20 BK