APA-viite (7. p.)

United States. Bureau of Mines & Cornell, W. L. (1987). Continuous flotation testing to recover cobalt from Missouri lead ores. U.S. Dept. of the Interior, Bureau of Mines.

Chicago-viite (17. p.)

United States. Bureau of Mines ja W. L. Cornell. Continuous Flotation Testing to Recover Cobalt from Missouri Lead Ores. [Avondale, Md.]: U.S. Dept. of the Interior, Bureau of Mines, 1987.

MLA-viite (9. p.)

United States. Bureau of Mines ja W. L. Cornell. Continuous Flotation Testing to Recover Cobalt from Missouri Lead Ores. U.S. Dept. of the Interior, Bureau of Mines, 1987.