Bielawski, Joseph G. <br/><br/>
Guide to educational technology :  early childhood education / 
Joseph G. Bielawski 
 - Westport :  Technomic Publishing,  1973 
 - iv, 135 p. ;  28 cm. 
<br/><br/>p. 124-128 
<br/><br/><label>ISBN: </label>0877621101 
<br/><br/><label>LCCN: </label>73-076965 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational technology--Directories<br/>Early childhood education