Shultz, Janet L. <br/><br/>
Mass spectrometric analyses of coal-tar distillates and residues  
Shultz, Janet L. 
 - Washington  Bureau of mines  1967 
 - Report Investigation  7000 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>espectrometría de masas<br/>alquitrán de hulla<br/>residuos<br/>destilados
<br/><br/><label>Universal Decimal Class. No.: </label>543.51-035.682 (47)