APA (7th ed.) Citation

Pilger, T. (1925). Becker quick steam boiler. [publisher not identified].

Chicago Style (17th ed.) Citation

Pilger, Theodore. Becker Quick Steam Boiler. Washington, D.C.: [publisher not identified], 1925.

MLA (9th ed.) Citation

Pilger, Theodore. Becker Quick Steam Boiler. [publisher not identified], 1925.

Warning: These citations may not always be 100% accurate.