Harlen, Wynne. <br/><br/>
Unesco sourcebook for science in the primary school :  a workshop approach to teacher education / 
Wynne Harlen, Jos Elstgeest. 
 - Paris :  Unesco,  1992. 
 - 271 p. : ill. 
<br/><br/><label>ISBN: </label>9231027212 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching (Primary).