Dyfyniad APA

Lilley, E. R. (1936). Economic Geology of Mineral Deposits. Henry Holt and Co.

Dyfyniad Arddull Chicago

Lilley, Ernest R. Economic Geology of Mineral Deposits. New York: Henry Holt and Co, 1936.

Dyfyniad MLA

Lilley, Ernest R. Economic Geology of Mineral Deposits. Henry Holt and Co, 1936.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.