APA (7th ed.) Citation

Willard, D. G., & Bleiwas, D. I. (1991). Cobalt availability: A minerals availability appraisal. U.S. Dept. of the Interior, Bureau of Mines.

Chicago Style (17th ed.) Citation

Willard, David G., and Donald I. Bleiwas. Cobalt Availability: A Minerals Availability Appraisal. Washington, DC: U.S. Dept. of the Interior, Bureau of Mines, 1991.

MLA (9th ed.) Citation

Willard, David G., and Donald I. Bleiwas. Cobalt Availability: A Minerals Availability Appraisal. U.S. Dept. of the Interior, Bureau of Mines, 1991.