UNESCO <br/><br/>
New trends in integrated science teaching 
/edited by Judith Reay 
 - Paris  United Nations Educational, Scientific And Cultural  1979 
 - (v.v-238 p.) 
<br/><br/> Includes appendix.<br/> 
<br/><br/><label>ISBN: </label>9231017578 
<br/><br/><label>Dewey Class. No.: </label>507  / UNE