SHETH PUB. (2009). STUDENTS' MODERN DICTIONARY OF GEOGRAPHY WITH ILLUSTRATIONS. SHETH PUB.
Chicago-referens (17:e uppl.)SHETH PUB. STUDENTS' MODERN DICTIONARY OF GEOGRAPHY WITH ILLUSTRATIONS. SHETH PUB, 2009.
MLA-referens (9:e uppl.)SHETH PUB. STUDENTS' MODERN DICTIONARY OF GEOGRAPHY WITH ILLUSTRATIONS. SHETH PUB, 2009.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.