Washington (State). Division of Geology and Earth Resources & Stoffel, K. L. (1991). Geologic map of Washington, northeast quadrant. Washington Division of Geology and Earth Resources.
Cita Chicago Style (17a ed.)Washington (State). Division of Geology and Earth Resources y Keith L. Stoffel. Geologic Map of Washington, Northeast Quadrant. [Olympia, Wash.]: Washington Division of Geology and Earth Resources, 1991.
Cita MLA (8a ed.)Washington (State). Division of Geology and Earth Resources y Keith L. Stoffel. Geologic Map of Washington, Northeast Quadrant. Washington Division of Geology and Earth Resources, 1991.
Precaución: Estas citas no son 100% exactas.