Echandi, E. Knoke, J.K. Nigh Junior, E.L. Shenk, M. Weekman, G.T. <br/><br/>
Crop protection in Brazil, Uruguay, Bolivia, Ecuador and Dominican Republic 

 - California (USA):   1972.  
 - 56 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Defesa Vegetal