APA (7th ed.) Citation

Eno, W. P. (1929). Simplification of highway traffic. The Eno Foundation for Highway Traffic Regulation, Inc..

Chicago Style (17th ed.) Citation

Eno, William Phelps. Simplification of Highway Traffic. [Washington, D.C.]: The Eno Foundation for Highway Traffic Regulation, Inc., 1929.

MLA (9th ed.) Citation

Eno, William Phelps. Simplification of Highway Traffic. The Eno Foundation for Highway Traffic Regulation, Inc., 1929.