APA (7th ed.) Citation

World Traffic Engineering Conference Washington, D.C., & Institute of Traffic Engineers. (1961). [Reports]: Combining: 31st annual meeting, Institute of Traffic Engineers, Aug. 21-33, 1961 [and] International Sessions in Traffic Engineering, Aug. 24-26, 1961. [publisher not identified].

Chicago Style (17th ed.) Citation

World Traffic Engineering Conference Washington, D.C., and Institute of Traffic Engineers. [Reports]: Combining: 31st Annual Meeting, Institute of Traffic Engineers, Aug. 21-33, 1961 [and] International Sessions in Traffic Engineering, Aug. 24-26, 1961. [Washington]: [publisher not identified], 1961.

MLA (9th ed.) Citation

World Traffic Engineering Conference Washington, D.C., and Institute of Traffic Engineers. [Reports]: Combining: 31st Annual Meeting, Institute of Traffic Engineers, Aug. 21-33, 1961 [and] International Sessions in Traffic Engineering, Aug. 24-26, 1961. [publisher not identified], 1961.