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       Finch , Vernor Clifford , 1883 . Physical elements of geography , by Vernor C . Finch and Glenn T . Trewartha . 2d . ed. New York , McGraw-Hill , 1942 . 641 p. ilus . ( a plegs . en un bolsillo ) 23 cm ( McGraw-Hill series in geography ) "A republication of Part I of the more comprehensive book , Elements of Geography: Physical and Cultural , second edition , by the same authors". Incluye bibliografía