New trends in biology teaching 

 - Paris :  UNESCO Publications,  1977 
 - ix, 235 p. 
 -  04 .
<br/><br/><label>ISBN: </label>9231014021 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology
<br/><br/><label>Dewey Class. No.: </label>574.071  / U567