A Guidebook ton plant screening : phytochemical and biological/  -- Manila:  UST Pub. House,  2005. <br/>xvii, 150 p.:  ill.;  25 cm. <br/><br/><label>ISBN: </label>971-506-307-1  <br/><br/><label>Subjects--Topical Terms: </label><br/>Botanical chemistry.<br/>Plants-Analysis.