Scheme for an investigation on the value of D.D.T. as a weapon against malaria sanction of expenditure.  
 File No. 2M-32/45 

 -  1945 
 - 09 P;  H-35 cm; W-22 cm 
<br/><br/> সচিবালয় রেকর্ডরুম সংগ্রহ (প্রথম পর্যায়) <br/><br/> 
<br/><br/><label>Subjects--Topical Terms: </label><br/>weapon --against