APA (7th ed.) Citation

Cash, F. E. (1929). Accident reduction in Alabama coal mines. [publisher not identified].

Chicago Style (17th ed.) Citation

Cash, Frank E. Accident Reduction in Alabama Coal Mines. Washington, D.C.: [publisher not identified], 1929.

MLA (9th ed.) Citation

Cash, Frank E. Accident Reduction in Alabama Coal Mines. [publisher not identified], 1929.