Piaget, Jean,  1896- <br/><br/>
The child's conception of physical causality / 
translated by Marjorie Gabain 
 - Totowa, N.J. :  Littlefield Adams,  1969 
 - viii, 309 p. :  ill. ;  23 cm. 
 - International library of psychology, philosophy and scientific method .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Child psychology<br/>Causation