APA (7th ed.) Citation

Benedict, C. H. (1930). Methods and costs of treatment at Calumet and Hecla reclamation plant. [publisher not identified].

Chicago Style (17th ed.) Citation

Benedict, C. Harry. Methods and Costs of Treatment at Calumet and Hecla Reclamation Plant. Washington, D.C.: [publisher not identified], 1930.

MLA (9th ed.) Citation

Benedict, C. Harry. Methods and Costs of Treatment at Calumet and Hecla Reclamation Plant. [publisher not identified], 1930.