Shepard H H <br/><br/>
Chemistry and action of insecticides 
Shepard H H 
 -  1951 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>41252 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemical technology
<br/><br/><label>Dewey Class. No.: </label>F594, JL;1