Gunkel, W. <br/><br/>
Handbook of essential oils / 
W. Gunkel, L.C. Fraser, S.C. Bhatia 
 - Singapore :  Alkem Company,  2011 
 - 5 v. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9789810860943 (set) 9789810860950 (v 1) 9789810860967 (v 2) 9789810860974 (v 3) 9789810860981 (v 4) 9789810860998 (v 5) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Essences and essential oils--Handbooks, manuals, etc.