Sears, Robert Richardson  1908, <br/><br/>
Patrerns of child rearing / 
By Robert r. sears, eleanor e. maccoby and Harry levin. in collaboration with Edgar l. lowell, pauline s. sears and John w.m. whiting. illus. by Jean berwick. evanston, illustrations 
 - vii, 549 páginas 
<br/><br/> "a report... from the laboratory of human development of the graduate school of education, harvard university". 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cuidado de niños
<br/><br/><label>LC Class. No.: </label>HQ769  / S38