000 00332nam a2200121Ia 4500
008 100324s9999 xx 000 0 und d
100 _aWorld Bank.
245 _aCost and benefits of agricultural research : state of the art
260 _bWorld Bank
_aWashington DC
650 _aCOSTING
942 _cBK
999 _c66022
_d66022