Rajaratnam, Nageswari Ramalingam,  1920- <br/><br/>
Vāṇija vidyā pravēśaya. 

 -  [1967] 
 - ix, 753 p.  illus., facsims., map.  22 cm. 
<br/><br/> In Sinhalese. 
<br/><br/><label>LCCN: </label>sa 68018326  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Commerce.
<br/><br/><label>LC Class. No.: </label>HF1007  / .R33