000			00331nam a2200157Ia 4500
082			_a336 _bM329.AP
100			_aMargolis, Julius, ed.
245			_aAnalysis of public output. _b
260			_aNew York _bNBER _c1970
300			_axvi, 409p.
500			_a
690			_a
700			_a
964			_a _b _c _d _e _f _g
921			_a4686
999			_c4686 _d4686