APA (7th ed.) Citation

(1924). Repair of labor-saving devices such as typewriters, adding machines, et cetera. [publisher not identified].

Chicago Style (17th ed.) Citation

Repair of Labor-saving Devices Such as Typewriters, Adding Machines, Et Cetera. Washington, D.C.: [publisher not identified], 1924.

MLA (9th ed.) Citation

Repair of Labor-saving Devices Such as Typewriters, Adding Machines, Et Cetera. [publisher not identified], 1924.