APA (7th ed.) Citation

Blatnik, J. A., & Prisk, C. W. (1968). Roadside hazards. Eno Foundation for Highway Traffic Control.

Chicago Style (17th ed.) Citation

Blatnik, John A., and Charles W. Prisk. Roadside Hazards. Saugatuck, Conn: Eno Foundation for Highway Traffic Control, 1968.

MLA (9th ed.) Citation

Blatnik, John A., and Charles W. Prisk. Roadside Hazards. Eno Foundation for Highway Traffic Control, 1968.