APA (7th ed.) Citation

Hall, L. (1930). French market for coin-operated scales. [publisher not identified].

Chicago Style (17th ed.) Citation

Hall, Louis. French Market for Coin-operated Scales. Washington, D.C.: [publisher not identified], 1930.

MLA (9th ed.) Citation

Hall, Louis. French Market for Coin-operated Scales. [publisher not identified], 1930.