Cita APA (7th ed.)

National Research Council (U.S.). Highway Research Board. (1953). Experiments in extension programs: Presented at the Thrity-second Annual Meeting, January 13-16, 1953. Highway Research Board.

Cita Chicago (17th ed.)

National Research Council (U.S.). Highway Research Board. Experiments in Extension Programs: Presented at the Thrity-second Annual Meeting, January 13-16, 1953. Washington, D.C: Highway Research Board, 1953.

Cita MLA (9th ed.)

National Research Council (U.S.). Highway Research Board. Experiments in Extension Programs: Presented at the Thrity-second Annual Meeting, January 13-16, 1953. Highway Research Board, 1953.