Lang R Ed. <br/><br/>
Laboratory and workshop notes 

 -  1949 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>59940 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science instruments
<br/><br/><label>Dewey Class. No.: </label>Acz7, H9