Wittmer, Donna S. <br/><br/>
Infant and toddler development and responsive program planning :  a relationship-based approach / 
Donna S. Wittmer, Sandra H. Petersen. 
 - Upper Saddle River, NJ :  Pearson/Merrill Prentice Hall,  c2006. 
 - xxi, 431 p. : photos., ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Child development--Study and teaching.<br/>Infants--Development--Study and teaching.<br/>Toddlers--Development--Study and teaching.