Bhattacharyya, G. <br/><br/>
Information sciences: a unified view through a system- approach 
/ G.Bhattacharyya 
 - Calcutta  Indian association of special libraries and information centers  1978 
 - 231 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library and information sciences
<br/><br/><label>Dewey Class. No.: </label>021  / BHA