International economics  pure theory and trade policy 
Prasanta Kumar Ray and Kunja Bihari Kundu 
 - Calcutta  Nababharat Publishers  1969 
 - 527p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics
<br/><br/><label>Dewey Class. No.: </label>330  / R211