000			00353nam a2200181 4500
020			_a _cRs.40
082			_a
100			_aMehta, S S
245			_aProductivity , production function and technical change
250			_a
260			_a _c
300			_a
490			_a
500			_a
590			_a _bMissing _cRs.40
650			_a
942			_cBK
999			_c315667 _d315667