Seal , G. N.   . <br/><br/>
Text book of Ophthalmology /   Textual Documents 

 - 4th /   . 
 - Calcutta :   Current Books International  ,   1995. 
 - 226 ;    
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Index Terms: </label>Medical Science 
<br/><br/><label>Dewey Class. No.: </label>617.7  / SEA