Welcher, Frank Johnson <br/><br/>
Semimicro qualitative analysis / 
Frank Johnson Welcher 
 - New York :  D. Van Nostrand company,  c1955 
 - 297 p. :  ill. ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microchemistry<br/>Chemistry, Analytic
<br/><br/><label>Dewey Class. No.: </label>543.22  / WES 1955