APA (7th ed.) Citation

Johnson, B. L. (1931). Nitrogen and its compounds. [publisher not identified].

Chicago Style (17th ed.) Citation

Johnson, Bertrand L. Nitrogen and Its Compounds. [Washington?]: [publisher not identified], 1931.

MLA (9th ed.) Citation

Johnson, Bertrand L. Nitrogen and Its Compounds. [publisher not identified], 1931.

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