000 00260nam a2200121 a 4500
003 EIA
001 12847
942 _02
_2ddc
_cBK
245 _aMethods-time measurement
260 _cc1948
008 141112s1948 ck r 000 u spa d
082 _a658.542
_bM471
999 _c9775
_d9775