Sharma, B K <br/><br/>
Pustakala avam soochana vigyan bahuvikalpiya prashna (Hindi) 

 - Agra  Y.K.Publishers  2005 
 - 365 
<br/><br/><label>ISBN: </label>81-85070-56-3 
<br/><br/><label>Dewey Class. No.: </label>025 SB:P