Cita APA

U.S. Bureau of Mines. (1965). Mineral facts and problems. s.n.

Citación estilo Chicago

U.S. Bureau of Mines. Mineral Facts and Problems. Washington: s.n, 1965.

Cita MLA

U.S. Bureau of Mines. Mineral Facts and Problems. s.n, 1965.

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