New trends in integrated science teaching / 

 - Paris :  Unesco,  1990. 
 - Vols. ;  29 cm. 
 - The teaching of basic sciences .
<br/><br/>V. 6-- ;  
<br/><br/>72  72 
<br/><br/><label>ISBN: </label>9231013777 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Teaching.
<br/><br/><label>Dewey Class. No.: </label>507 / U3n