000 00555nam a2200181 u 4500
001 001016471
005 20221213214321.0
008 140506s1971 ||||||||||||||||||||eng|c
041 0 _aeng
100 1 _aMansfield, Edwin
245 1 0 _aTechnological change :
_bAn introduction to a vital area of modern economics /
_cEd. Mansfield.
260 _aNew York :
_bW.W. Norton & Company., Inc.,
_c1971.
300 _a165 p. ;
_c21 cm.
500 _aIncludes index
650 1 4 _aEconomics
650 1 4 _aPublic policy
_xTechnological change
942 _2udc
_cBK
999 _c906537
_d906537