Freeman T W. (2007). A hundred years of geography. Aldine Transaction.
Chicago Edition CitationFreeman T W. A Hundred Years of Geography. New Brunswick: Aldine Transaction, 2007.
MLA Edition CitationFreeman T W. A Hundred Years of Geography. Aldine Transaction, 2007.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.