Singer, Robert D.  1931- <br/><br/>
Psychological development in children / 
[By] Robert D. Singer, Anne Singer. 
 - Philadelphia :  Saunders,  1969. 
 - xv, 437 p. :  ill. ;  25 cm. 
 - Saunders books in psychology .
<br/><br/>Includes bibliogr. references and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Child psychology