APA (7th ed.) Citation

Devine, J. M., & Wilhelm, C. J. (1931). Hydrogen-sulphide content of gas in some producing oil fields. [publisher not identified].

Chicago Style (17th ed.) Citation

Devine, John Michael, and C. J. Wilhelm. Hydrogen-sulphide Content of Gas in Some Producing Oil Fields. Washington, D.C.: [publisher not identified], 1931.

MLA (9th ed.) Citation

Devine, John Michael, and C. J. Wilhelm. Hydrogen-sulphide Content of Gas in Some Producing Oil Fields. [publisher not identified], 1931.