Training of Police Personnel in D.D.T Spraying operation at the Material Institute at Dacca.    
 P3P-63/50 

 -  1950 
 - 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/>Spraying--operation