Preston, Richard
The hot zone / Richard Preston
Random House, 1994
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Mitchell, Mairin
The maritime history of Russia, 848-1948
Sidwick and Jackson, 1949
 Buku Teks
Mitchell, Mairin
Maritime history of Russia, 848-1984
Sidgwick and Jackson, 1949
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Atlas of European history
edited by Edward Whiting Fox
Oxford University Press, 1957
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Atlas of American history
rand McNally and Company, 2003
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