Zapffe, C. (1949). Iron bearing deposits in Washington, Oregon, and Idaho: A review.
Cita Chicago Style (17a ed.)Zapffe, Carl. Iron Bearing Deposits in Washington, Oregon, and Idaho: A Review. Portland, Or, 1949.
Cita MLA (8a ed.)Zapffe, Carl. Iron Bearing Deposits in Washington, Oregon, and Idaho: A Review. 1949.
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