Knobloch Hilda <br/><br/>
Development questionnaire for infants forty weeks of age: An evaluation 

 - Lafayette   Child Development Publications  1956 
 - 112p 
 - Monograph of the society for research in child development; 1, V 20 .
<br/><br/><label>Source: </label>Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Child psychology