000 00536nam a2200157Ia 4500
999 _c79400
_d79400
005 20210107131936.0
008 180710s9999 xx 000 0 und d
041 _aEN
082 _a604.2
_bSRI
_223
110 _979543
_aSri Lanka Standards Institution
245 _aSpecification for engineering drawing practice-Sls: 409: 1977 for the use of theStandards Institutions- The Open University Diploma in techn
260 _aColombo
_bSri Lanka Standards Institution
_c1992
509 _aNS
650 _aEngineering drawing
942 _cPR