APA (7th ed.) Citation

Harris-Bickford, E. L. T. (1930). Austrian market for typewriters. [publisher not identified].

Chicago Style (17th ed.) Citation

Harris-Bickford, E. L. T. Austrian Market for Typewriters. Washington, D.C.: [publisher not identified], 1930.

MLA (9th ed.) Citation

Harris-Bickford, E. L. T. Austrian Market for Typewriters. [publisher not identified], 1930.