Proposal for use of the disinfectors installed in the port of Calcutta at the time of outbreak of all infectious diseases.  
 3P-44/37 

 -  1937 
 - 15 p.  H-35 cm; W-22 cm. 
<br/><br/> সচিবালয় রেকর্ডরুম সংগ্রহ (প্রথম পর্যায়) <br/> 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Proposal --infectious