000 00355nam a2200133Ia 4500
008 231004s9999||||xx |||||||||||||| ||und||
020 _a9780226308845
041 _aeng
082 _a338.0640973
_bN84 GRI
100 _aGriliches, Zvi (Ed.)
245 0 _aR & D, patents, and productivity
260 _bThe University of Chicago Press
_c1984
942 _cBK
999 _c23127
_d23127