Dyfyniad APA

Economic Geology Publishing Co. (1995). Economic Geology,vol.90(1-3).

Dyfyniad Arddull Chicago

Economic Geology Publishing Co. Economic Geology,vol.90(1-3). Economic Geology Publishing Co, 1995.

Dyfyniad MLA

Economic Geology Publishing Co. Economic Geology,vol.90(1-3). 1995.

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