Phondke, Bal <br/><br/>
When questions to 50 interesting answers/ 
Bal Phondke 
 - New Delhi:  National Book Trust,  2009. 
 - x, 245 p. :  ill. ;  23 cm. 
 - (Popular science) .
<br/><br/><label>ISBN: </label>9788123755472 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Dewey Class. No.: </label>507  / PHO/W