Hertsgaard, Mark. <br/><br/>
Yeryüzü gezgini / 
by Mark Hertsgaard. 
 - İstanbul :  Tema,  n.d. 
 - 350 p. : ;  23 cm. 
<br/><br/> This book is in Turkish. 
<br/><br/><label>ISBN: </label>9757169323 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Echology.