Welcher, Frank J.  1907- <br/><br/>
The analytical uses of ethylenediamine tetraacetic acid / 
Frank J. Welcher 
 - New York :  Van Nostrand,  c1958 [reprinted 1961] 
 - Xiv, 366 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliography and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ethylenediaminetetraacetic acid.
<br/><br/><label>Dewey Class. No.: </label>547.7  / WEA 1961