Memorial from Dr. D.N. Roy, Assistant Professor of Entomology School of Tropical Medicine and Hygiene, Calcutta.  
 2S-20/33 

 -  1933 
 - 17 p;  H-35 cm; W-22 cm 
<br/><br/> সচিবালয় রেকর্ডরুম সংগ্রহ (প্রথম পর্যায়) <br/><br/> 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Entomology