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JSTOR Semple E.C. Irrigation and Reclamation in the Ancient Mediterranean Region //Annals of the Association of American Geographers, Vol. 19, No. 3 (Sep., 1929), pp. 111-148 . Frost R.S. The Reclamation of the Pontine Marshes // Geographical Review, Vol. 24, No. 4 (Oct., 1934), pp. 584-595 . Cпасибо, brecht_1@mail.ru

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