Sen, Amarendrakumar. <br/><br/>
Guptacara. 

 -  [1962] 
 - 120 p.  22 cm. 
<br/><br/> In Bengali. 
<br/><br/><label>LCCN: </label>sa 63002072  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spies.<br/>World War, 1914-1918--Secret service.<br/>World War, 1939-1945--Secret service.
<br/><br/><label>LC Class. No.: </label>D639.S7  / S48