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