Kingston, G. A., & Fulkerson, F. B. (1962). The Pacific Northwest steel industry. U.S. Dept. of the Interior, Bureau of Mines.
Cita Chicago Style (17a ed.)Kingston, Gary A., y Frank B. Fulkerson. The Pacific Northwest Steel Industry. [Washington]: U.S. Dept. of the Interior, Bureau of Mines, 1962.
Cita MLA (8a ed.)Kingston, Gary A., y Frank B. Fulkerson. The Pacific Northwest Steel Industry. U.S. Dept. of the Interior, Bureau of Mines, 1962.
Precaución: Estas citas no son 100% exactas.