Dhaliwal, G S &  Singh, Balwinder <br/><br/>
Pesticides their ecological impact in developing countries 

 - Commonwealth, New delhi  1993 
 - vii; 399 
<br/><br/><label>ISBN: </label>81-7169-248-6 
<br/><br/><label>Dewey Class. No.: </label>363.7384 Dha/Sin