National Geographic :  Cairo-Clamorous Heart of Egypt; Alone Across the Artic Crown; Giant Crocodiles; Mauritius 

 - Washington :   National Geographic Society 
 - Mensual 
<br/><br/> INV. UNIV. 27825; INV: BIB: 26482 
<br/><br/><label>ISSN: </label>0027-9358 
<br/><br/><label>Standard No.: </label>DGR-M16227