Leddy, Edmund J; Roach, Don <br/><br/>
Introductory chemistry  

 -  Rinehart Press, San Francisco  1970 
 - 478 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental chemistry
<br/><br/><label>Dewey Class. No.: </label>540.157  LED-I