Catalog

Cita APA (7a ed.)

Gardner, E. D., & Johnson, C. H. (1934). Placer mining in the western United States. Dept. of the Interior, U.S. Bureau of Mines.

Cita Chicago Style (17a ed.)

Gardner, E. D., y Charles H. Johnson. Placer Mining in the Western United States. [Washington]: Dept. of the Interior, U.S. Bureau of Mines, 1934.

Cita MLA (8a ed.)

Gardner, E. D., y Charles H. Johnson. Placer Mining in the Western United States. Dept. of the Interior, U.S. Bureau of Mines, 1934.