American Metal Company, Hoag, C., & Matson, J. T. (1930). Mining practice at Pecos mine of American Metal Company of New Mexico. [publisher not identified].
Chicago Style (17th ed.) CitationAmerican Metal Company, C. Hoag, and J. T. Matson. Mining Practice at Pecos Mine of American Metal Company of New Mexico. Washington, D.C.: [publisher not identified], 1930.
MLA (9th ed.) CitationAmerican Metal Company, et al. Mining Practice at Pecos Mine of American Metal Company of New Mexico. [publisher not identified], 1930.
Warning: These citations may not always be 100% accurate.