Guild, P. W. (1957). Geology and mineral resources of the Congonhas district Minas Gerais, Brazil: A study of pre-Cambrian sedimentary iron formation and associated deposits of hematite and manganese ores. U.S. Gov. Print. Off.
Chicago-Zitierstil (17. Ausg.)Guild, Philip W. Geology and Mineral Resources of the Congonhas District Minas Gerais, Brazil: A Study of Pre-Cambrian Sedimentary Iron Formation and Associated Deposits of Hematite and Manganese Ores. Washington, DC: U.S. Gov. Print. Off, 1957.
MLA-Zitierstil (9. Ausg.)Guild, Philip W. Geology and Mineral Resources of the Congonhas District Minas Gerais, Brazil: A Study of Pre-Cambrian Sedimentary Iron Formation and Associated Deposits of Hematite and Manganese Ores. U.S. Gov. Print. Off, 1957.
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