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Kennedy, Warne Land of Greenstone / Warne Kennedy // National Geographic. - 2014. - Vol. 225. № 3. ISSN 0027-9358.

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Newman, Cathy Love on the Seine / Cathy Newman // National Geographic. - 2014. - Vol. 225. № 5. - 116-133 p.. ISSN 0027-9358.

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