Helm, Judy Harris, <br/><br/>
Young investigators :  the project approach in the early years / 
Judy Harris Helm, Lilian G. Katz. 
 - Third edition. 
 - xi, 30 pages ;  29 cm. 
 - Early childhood education series .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780807756904  RM137.06 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Project method in teaching.<br/>Early childhood education--Curricula.