Child Welfare League of America standards for day care service /  

 - New York :  Child Welfare League of America,  1960 [reprint 1964]  
 - ix, 106 p. ;   23 cm. 
<br/><br/>Bibliography: p. 116-118. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Day care centers.--United States --Standards
<br/><br/><label>Dewey Class. No.: </label>362.70973   / CHC 1964