Helmore, G. A. <br/><br/>
Piaget: a practical consideration :  a consideration of the general theories and work of Jean Piaget, with an account of a short follow up study of his work on the development of the concept of geometry / 
by G.A. Helmore. 
 - [1st ed.]. 
 - Oxford ; New York :  Oxford ; New York :  Pergamon Press,  [1969] 
 - The Commonwealth and international library .
<br/><br/>"Books and articles by Jean Piaget": p. 68-72. Bibliography: p. 73. 
<br/><br/><label>ISBN: </label>0080068936 
<br/><br/><label>LCCN: </label>75094933 
<br/><br/><label>Subjects--Personal Names: </label><br/>Piaget, Jean, 1896- Piaget, Jean, 1896- 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Child psychology.<br/>Geometry concept.
<br/><br/><label>LC Class. No.: </label>BF721  / .H36 1969 
<br/><br/><label>Dewey Class. No.: </label>155.41/3/0924