Orpwood, Graham. <br/><br/>
Science and technology in the primary school of tomorrow :  a study prepared for the International Bureau of Education / 
Graham Orpwood and Ingvar Werdelin. 
 - Paris, France :  Unesco,  c1987. 
 - 216 pages ;  22 cm. 
 - Studies and surveys in comparative education .
<br/><br/>Bibliography: p. 199-204. 
<br/><br/><label>ISBN: </label>9231025023 
<br/><br/><label>LCCN: </label>88192738  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching (Elementary)<br/>Technology--Study and teaching (Elementary)
<br/><br/><label>LC Class. No.: </label>LB 1027  / .O76 
<br/><br/><label>Dewey Class. No.: </label>372.3/5044