APA (7th ed.) Citation

United States. Bureau of Mines & Barker, J. C. Critical and strategic minerals in Alaska: Cobalt, the platinum group-metals, and chromite.

Chicago Style (17th ed.) Citation

United States. Bureau of Mines and James C. Barker. Critical and Strategic Minerals in Alaska: Cobalt, the Platinum Group-metals, and Chromite.

MLA (9th ed.) Citation

United States. Bureau of Mines and James C. Barker. Critical and Strategic Minerals in Alaska: Cobalt, the Platinum Group-metals, and Chromite.

Warning: These citations may not always be 100% accurate.