APA (7th ed.) Citation

(1955). Vol. 50, № 1-2; Economic Geology. 1955.

Chicago Style (17th ed.) Citation

Vol. 50, № 1-2; Economic Geology. 1955, 1955.

MLA (9th ed.) Citation

Vol. 50, № 1-2; Economic Geology. 1955, 1955.

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