Taylor, R. B. (1964). Geology of the Duluth Gabbro Complex near Duluth, Minnesota. University of Minnesota.
Cita Chicago Style (17a ed.)Taylor, Richard B. Geology of the Duluth Gabbro Complex Near Duluth, Minnesota. Minneapolis: University of Minnesota, 1964.
Cita MLA (9a ed.)Taylor, Richard B. Geology of the Duluth Gabbro Complex Near Duluth, Minnesota. University of Minnesota, 1964.
Precaución: Estas citas no son 100% exactas.