372.21<br/>VAI<br/><br/>
55914724<br/><br/>
Vaidya, Narendra <br/><br/>
How children discover knowledge  : theoretical and practical foundations of student investigations in science 
/ Narendra Vaidya 
. – New Delhi :  Oxford & IBH, 1974.
<br/><br/>xv, 315 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CHILD EDUCATION
<br/><br/><label>Dewey Class. No.: </label>372.21  / VAI