Não informado. (1908). Proceedings of the Mining and Metallurgical Society of America. Office of the Secretary Mining and Metallurgical Society of America.
Chicago-viite (17. p.)Não informado. Proceedings of the Mining and Metallurgical Society of America. New York: Office of the Secretary Mining and Metallurgical Society of America, 1908.
MLA-viite (8. p.)Não informado. Proceedings of the Mining and Metallurgical Society of America. Office of the Secretary Mining and Metallurgical Society of America, 1908.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.