Não informado. Publications of the Earth Physics Branch. Department of Energy, Mines and Resources.
Cita Chicago Style (17a ed.)Não informado. Publications of the Earth Physics Branch. Ottawa: Department of Energy, Mines and Resources.
Cita MLA (8a ed.)Não informado. Publications of the Earth Physics Branch. Department of Energy, Mines and Resources.
Precaución: Estas citas no son 100% exactas.