APA (7th ed.) Citation

Currie, R. D., & Owings, C. W. (1930). Privately owned mine rescue stations. [publisher not identified].

Chicago Style (17th ed.) Citation

Currie, R. D., and C. W. Owings. Privately Owned Mine Rescue Stations. Washington, D.C.: [publisher not identified], 1930.

MLA (9th ed.) Citation

Currie, R. D., and C. W. Owings. Privately Owned Mine Rescue Stations. [publisher not identified], 1930.