Cita APA (7a ed.)

(1939). Frontiers of geology ; ten papers originally prepared for fifteen-minute radio addresses / by fellows of the Society, 1938-1939.

Cita Chicago Style (17a ed.)

Frontiers of Geology ; Ten Papers Originally Prepared for Fifteen-minute Radio Addresses / by Fellows of the Society, 1938-1939. 1939.

Cita MLA (9a ed.)

Frontiers of Geology ; Ten Papers Originally Prepared for Fifteen-minute Radio Addresses / by Fellows of the Society, 1938-1939. 1939.