APA (7th ed.) Citation

Dean, R. S. (1931). Absorption of nitrogen by steel. [publisher not identified].

Chicago Style (17th ed.) Citation

Dean, R. S. Absorption of Nitrogen by Steel. Washington, D.C.: [publisher not identified], 1931.

MLA (9th ed.) Citation

Dean, R. S. Absorption of Nitrogen by Steel. [publisher not identified], 1931.