Maximum allowable concentrations of toxic substances in industry 
/ Proceedings of the international symposium on maximum allowable concentrations of toxic substances in industry held in Prague, Czechoslovakia, April 1959 
 - London:   Butterworths,   1961 
 - ix, 373+vip. 
<br/><br/> Vol. 3 Pure and applied chemistry 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Proceedings
<br/><br/><label>Universal Decimal Class. No.: </label>54:05  / K1.3