00454nam a22001217a 4500008004100000040005500041080002300096245012100119260004200240300001100282650002500293653001400318230502b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  a669.4...7(05) bK9  aLead 68: bEdited proceedings third international conference on lead Venice c/ European Lead Development Committee   aOxford: bPergamon Press Ltd., c1969  a461p.   aChemical technology   aChemical