James ,, P. E. (1964). One world divided: A geographer looks at the modern world. Blaisdell.
Chicago Style (17th ed.) ZitazioaJames ,, Preston E. One World Divided: A Geographer Looks at the Modern World. Toronto: Blaisdell, 1964.
MLA (9th ed.) ZitazioaJames ,, Preston E. One World Divided: A Geographer Looks at the Modern World. Blaisdell, 1964.
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