Martin, Lawrence.
The Geographical Review ; no. 3 - New York-US : Geografical record, 1940. - páginas 525-528 : Ilustraciones blanco y negro - Irregular - Vol. XXX, no. 3(Jul. 1940) - The Geographical Review ; no. 3 . - The Geographical Review. .
Art¡culo dentro de: Geographical reviews.
The Geographical Review ; no. 3 - New York-US : Geografical record, 1940. - páginas 525-528 : Ilustraciones blanco y negro - Irregular - Vol. XXX, no. 3(Jul. 1940) - The Geographical Review ; no. 3 . - The Geographical Review. .
Art¡culo dentro de: Geographical reviews.