Biological pest control for field crops  summaries of papers presented at the International Seminar on Biological Control of Pests for Field Crops 
compiled by Keio Aizawa 
 - Taipei City  ASPAC Food & Fertilizer Technology Center  1987 
 - 87 p. ; 26 cm. 
 - Extension bulletin  no. 257 .
<br/><br/><label>ISBN: </label>50379-7597 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pests--Biological control--Congresses