APA (7th ed.) Citation

Berwald, W. B., & Johnson, T. W. (1929). Flow of natural gas through high-pressure transmission lines. [publisher not identified].

Chicago Style (17th ed.) Citation

Berwald, William Bennett, and T. W. Johnson. Flow of Natural Gas Through High-pressure Transmission Lines. Washington, D.C.: [publisher not identified], 1929.

MLA (9th ed.) Citation

Berwald, William Bennett, and T. W. Johnson. Flow of Natural Gas Through High-pressure Transmission Lines. [publisher not identified], 1929.