Stamp Dudley, L.
The southern margin of the sahara : Comments on some recent studies on the question of desiccation in west Africa. - New York-US : Geografical record, 1940. - páginas 297-300 : Ilustraciones blanco y negro - Irregular - Vol. XXX, no. 2(Apr. 1940) - The Geographical Review ; no. 2 . - The Geographical Review. .
The southern margin of the sahara : Comments on some recent studies on the question of desiccation in west Africa. - New York-US : Geografical record, 1940. - páginas 297-300 : Ilustraciones blanco y negro - Irregular - Vol. XXX, no. 2(Apr. 1940) - The Geographical Review ; no. 2 . - The Geographical Review. .
