Physiographic map of the Carpathians [cartographic material] / by Emmanuel de Martonne.
MLA
Martonne, Emmanuel de, 1873-1955. Physiographic map of the Carpathians [cartographic material] / by Emmanuel de Martonne.. BRBL_00251. c1917.. https://collections.library.yale.edu/catalog/15498135.
APA, 6th edition
Martonne, Emmanuel de, 1873-1955. (["BRBL_00251"])(c1917.)[Physiographic map of the Carpathians [cartographic material] / by Emmanuel de Martonne.]. https://collections.library.yale.edu/catalog/15498135.