Guevara, Beatrice Q.  <br/><br/>
A Guidebook to Plant Screening:   Phytochemical and Biological. 
Beatrice Q. Guevara 
 - rev. ed. 
 - Manila:   UST Publishing House,   2005 
 - xviii, 150 p. 
<br/><br/><label>ISBN: </label>(pbk.)