Feridun, Hüsnü,  1927-2022. <br/><br/>
Natural Sciences :  Reflexions ın their Nature and Learning Processes in Schools / 
by Hüsnü Feridun. 
 -  1988. 
 - 45 p. ;  30 cm. 
<br/><br/><label>LC Class. No.: </label>SPE-B 00667