APA (7th ed.) Citation

Institute of Traffic Engineers. (1931). Proceedings of the ... annual meeting of the Institute of Traffic Engineers. [publisher not identified].

Chicago Style (17th ed.) Citation

Institute of Traffic Engineers. Proceedings of the ... Annual Meeting of the Institute of Traffic Engineers. [New York?]: [publisher not identified], 1931.

MLA (9th ed.) Citation

Institute of Traffic Engineers. Proceedings of the ... Annual Meeting of the Institute of Traffic Engineers. [publisher not identified], 1931.