Birch, T. W. Maps, topographical and statistical / T.W. Birch. - 2nd ed. - Oxford : Clarendon Press, 1964. - xiv, 240 p. : illus., maps.; 24 cm. Bibliography(p. 235-238) Subjects--Topical Terms: Cartography.--Environmental ScienceTopografia (Geografia) Dewey Class. No.: 912