Field guide on harmful and useful organisms in Philippine ricefields (insects and non-insects). 

 - Revised edition. 
 - Munoz, Nueva Ecija :  PhilRice Research Institute,  [2007] 
 - 61 pages :  ill. (colored) ;  23 cm. 
<br/><br/> References: p.61. 
<br/><br/><label>ISBN: </label>9719081031 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Insects and non-insects.<br/>Organisms, ricefields.