Kalkan, Ersin. <br/><br/>
The World beneath istanbul / 
by Ersin Kalkan. 
 - 1st ed. 
 - İstanbul :  Kültür A.Ş.,  2010. 
 - 250 p. :  ill., col ;  24 cm. 
<br/><br/><br/>English. 
<br/><br/><label>ISBN: </label>9786055592059 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Civilization, Subterranean--Istanbul (Turkey).<br/>Underground construction--Istanbul (Turkey).<br/>Urban archaeology--Istanbul (Turkey).<br/>Istanbul (Turkey)--History.