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041 _aspa
082 _a370
100 _aGRAYSON, LAWRENCE P.
245 0 _aFIRST WORLD CONFERENCE ON CONTINUING ENGINEER
250 _a1A ED.
260 _aEstados Unidos
_bS.E.
_c1979
260 _aS.L.
300 _a382
942 _c01
010 _a12956
999 _c202682
_d202682