Derkey, R. E., Joseph, N. L., & Lasmanis, R. (1990). Metal mines of Washington: Preliminary report. Washington State Dept. of Natural Resources, Division of Geology and Earth Resources.
Cita Chicago Style (17a ed.)Derkey, Robert E., Nancy L. Joseph, y Raymond Lasmanis. Metal Mines of Washington: Preliminary Report. [Olympia, Wash.?]: Washington State Dept. of Natural Resources, Division of Geology and Earth Resources, 1990.
Cita MLA (8a ed.)Derkey, Robert E., et al. Metal Mines of Washington: Preliminary Report. Washington State Dept. of Natural Resources, Division of Geology and Earth Resources, 1990.
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