Greathead ,D.J <br/><br/>
Opportunities for biological control of agricultural pests in developing countries/ 
by D.J.Greathead 
 -  World Bank  1983. 
 - 1-44p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pests--Biological control	
<br/><br/><label>Dewey Class. No.: </label>632.96	  / GRE/O