APA (7th ed.) Citation

Ehrhardt, J. J. (1929). Machine tools for railways in Manchuria. [publisher not identified].

Chicago Style (17th ed.) Citation

Ehrhardt, John J. Machine Tools for Railways in Manchuria. Washington, D.C.: [publisher not identified], 1929.

MLA (9th ed.) Citation

Ehrhardt, John J. Machine Tools for Railways in Manchuria. [publisher not identified], 1929.