Schmidt, R. G. (1978). The potential for porphyry copper-molybdenum deposits in the eastern United States: A descriptive resumé of deposits of the porphyry type and an evaluation of potential areas for discovery of new deposits. US Gov. Print. Off.
Chicago-Zitierstil (17. Ausg.)Schmidt, Robert Gordon. The Potential for Porphyry Copper-molybdenum Deposits in the Eastern United States: A Descriptive Resumé of Deposits of the Porphyry Type and an Evaluation of Potential Areas for Discovery of New Deposits. Washington, DC: US Gov. Print. Off, 1978.
MLA-Zitierstil (9. Ausg.)Schmidt, Robert Gordon. The Potential for Porphyry Copper-molybdenum Deposits in the Eastern United States: A Descriptive Resumé of Deposits of the Porphyry Type and an Evaluation of Potential Areas for Discovery of New Deposits. US Gov. Print. Off, 1978.