Cofnodi Dyfyniadau
Dyfyniad APA
Bruce J. L., Lindgren Waldemar, & Ransome F. L. (1905). Plan of principal underground workings at cripple creek, Colorado. U. S. Geological Survey.
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Dyfyniad Arddull Chicago
Bruce J. L., Lindgren Waldemar, and Ransome F. L. Plan of Principal Underground Workings at Cripple Creek, Colorado. U. S. Geological Survey, 1905.
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Dyfyniad MLA
Bruce J. L., et al. Plan of Principal Underground Workings at Cripple Creek, Colorado. U. S. Geological Survey, 1905.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.