Cite

Mineral Production in the Caucasus / Authority: U.S. Geological Survey.

MLA

Mineral Production in the Caucasus / Authority: U.S. Geological Survey. U.S. Geological Survey, 1913. https://collections.library.yale.edu/catalog/15237895.

APA, 6th edition

Mineral Production in the Caucasus / Authority: U.S. Geological Survey. (1913). [Maps]. U.S. Geological Survey, https://collections.library.yale.edu/catalog/15237895.