Harrington, Robert Gerard, <br/><br/>
The effects of verbal self-instruction on creative play in preschool-aged children / 
by Robert Gerard Harrington. 
 - 2 microfiches ;  11 x 15 cm. 
<br/><br/>Thesis (Ph.D.)-University of Iowa, 1980 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Play.<br/>Child development.<br/>Education, Preschool.