New trends in integrated science teaching. 

 - Paris :  Unesco,  c 1971. 
 - Vols. :  ill. ;  27 cm. 
 - The teaching of basic sciences. .
<br/><br/>V. 1- (1969-70) ; 
<br/><br/>333  333 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Teaching.
<br/><br/><label>Dewey Class. No.: </label>507 / U3n