Lal, D.I. . <br/><br/>
Adhunik Balmanovigyan /  Textual Documents 
D.I.Lal. 
 - 1st ed. / 
 - Delhi :  Rajpal and Sons ,  1969. 
 - 174p. :  ill ;  22cm . 
<br/><br/><label>Subjects--Index Terms: </label>Psychology Child Psychology G-Philosophy 
<br/><br/><label>Dewey Class. No.: </label>150  / L 41 Ad