Sadler, J.E. <br/><br/>
Concept in primary education/ 
John E. Sadler 
 - London  George allen & Unwin  1974 
 - 166 p.:  ill.;  22 cm 
 - Unwin education books  19 .
<br/><br/><label>ISBN: </label>0043700551 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Primary education
<br/><br/><label>LC Class. No.: </label>DUCE LB1507.S17