Guenther, Ernest <br/><br/>
Essential oils 

 - New York:   D Van Nostrand Company, Inc.,   1952 
<br/><br/> Vol. 4 (Individual essential oils of the plant...); xiv, 752p.<br/>Vol.5(Individual essential oils of the plant families); xvii, 507p.<br/>Vol. 6(Individual essential oils of the plant families); xvi, 481p. 
<br/><br/><label>Universal Decimal Class. No.: </label>668.5  / J2