Sir Ponnambalam Ramanathan 

 - Colombo  Then Ministry of Posts and Telecommunications  1975 
 - 7p 
 - Stamp Bulletin; No. 42 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sri Lanka-Crisis
<br/><br/><label>Dewey Class. No.: </label>323.2  / RAM