Mining and engineering world, Breger, C. L. e., & Sisley, G. E. e. (1912). The Mining world index of current literature. v. s.n.
Cita Chicago (17th ed.)Mining and engineering world, Carpel Leventhal ed Breger, i George E. ed Sisley. The Mining World Index of Current Literature. V. Chicago: s.n, 1912.
Cita MLA (9th ed.)Mining and engineering world, et al. The Mining World Index of Current Literature. V. s.n, 1912.
Atenció: Aquestes cites poden no estar 100% correctes.