APA (7th ed.) Citation

Gates, H. M. (1944). An accounting system for small bus companies. [publisher not identified].

Chicago Style (17th ed.) Citation

Gates, Howard Marion. An Accounting System for Small Bus Companies. [College Station, Tex.]: [publisher not identified], 1944.

MLA (9th ed.) Citation

Gates, Howard Marion. An Accounting System for Small Bus Companies. [publisher not identified], 1944.