Gelman Rochel <br/><br/>
Child's understanding of number 
Gelman Rochel; Gallistel C R 
 - Cambridge  Harvard University Press       1978 
 - xiii,260p. illus  cm. 
<br/><br/><label>Standard No.: </label>83,118 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PSYCHOLOGY
<br/><br/><label>Dewey Class. No.: </label>S13:4:(B), L8