Mercado, Beatriz L. <br/><br/>
Laboratory manual on tropical weed biology 
Beatriz L. Mercado, Juliana S. Manuel 
 - College, Laguna :  University of the Philippines at Los Ba¤os,  1977 
 - 101 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Weeds
<br/><br/><label>Dewey Class. No.: </label>635.5