Heinrichs, E. A.,  <br/><br/>
Insecticide calculations / 
E. A. Heinrichs, G. B. Aquino and E. V. Tipa 
 - Los Banos :  The International Rice Research Institute,  [Date of publication not identified] 
 -  illustrations ;  21cm 
 - Rice Production Training Series .
 - Rice Production Training Series .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Insecticides --Pests and diseases
<br/><br/><label>LC Class. No.: </label>SB951.5 H45