Optimal area of fish sanctuary for fish conservation and sanctuary management in afra beel. Narail 

 - Dhaka,   Author,  2006 
 - 51 L.  30 cm. 
<br/><br/>Includes bibliography (49-51 L.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fish conservation: Dissertations, Academic
<br/><br/><label>Dewey Class. No.: </label>T639.3 O61