Richard B. Hahn Welcher, Frank j. <br/><br/>
Semimicro Qualitative Analysis 
/ by Frank j. Welcher 
 - Toronto :  D. Van Nostrand Company,  1969 
 - 476 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemistry
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>Qualitative Analysis
<br/><br/><label>Dewey Class. No.: </label>544  / WEL-S