APA (7th ed.) Citation

Groves, H. L. (1925). Prospective agents for tobacco machinery. [publisher not identified].

Chicago Style (17th ed.) Citation

Groves, H. Lawrence. Prospective Agents for Tobacco Machinery. Washington, D.C.: [publisher not identified], 1925.

MLA (9th ed.) Citation

Groves, H. Lawrence. Prospective Agents for Tobacco Machinery. [publisher not identified], 1925.