Pulaski, Mary Ann Spencer <br/><br/>
Understanding Piaget  : An Introduction to Children's Cognitive Development 
/ by  
 - New York:  Harper & Row, Publishers.  1980. 
 - xvii,248p. 
<br/><br/><label>ISBN: </label>006134542 
<br/><br/><label>Dewey Class. No.: </label>155.4130  / PUL/U