APA (7th ed.) Citation

Hunt, L. W. (1929). Machine for bevelling glass. [publisher not identified].

Chicago Style (17th ed.) Citation

Hunt, Leigh W. Machine for Bevelling Glass. Washington, D.C.: [publisher not identified], 1929.

MLA (9th ed.) Citation

Hunt, Leigh W. Machine for Bevelling Glass. [publisher not identified], 1929.