Hotchkiss, W. O. (1947). Iron ore supply for the future.
Cita Chicago Style (17a ed.)Hotchkiss, William O. Iron Ore Supply for the Future. 1947.
Cita MLA (8a ed.)Hotchkiss, William O. Iron Ore Supply for the Future. 1947.
Precaución: Estas citas no son 100% exactas.