Παραπομπή σε μορφή APA (7η εκδ.)

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.

Παραπομπή σε μορφή Chicago (17η εκδ.)

United States. Bureau of Mines και 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.

Παραπομπή σε μορφή MLA (9th εκδ.)

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