Piaget, Jean,  1896- <br/><br/>
The child's conception of movement and speed / 
translated from the French by G. E. T. Holloway and M. J. Mackenzie 
 - London :  Routledge & K. Paul,  1970 
 - xi, 306 p. ;  23 cm. 
<br/><br/> Originally published as Les notions de mouvement et de vitesse chez l'enfant. Paris, Presses Universitaires de France, 1946 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>0710064918 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Motion perception (Vision)<br/>Child psychology