Citazione Stile APA (7a Edizione)

President's Highway Safety Conference Washington, D.C. (1947). Progress report: Action program meeting. June 18, 19, and 20, 1947. U.S. Govt. Print. Off..

Citazione stile Chigago Style (17a edizione)

President's Highway Safety Conference Washington, D.C. Progress Report: Action Program Meeting. June 18, 19, and 20, 1947. Washington, D.C.: U.S. Govt. Print. Off., 1947.

Citatione MLA (8a ed.)

President's Highway Safety Conference Washington, D.C. Progress Report: Action Program Meeting. June 18, 19, and 20, 1947. U.S. Govt. Print. Off., 1947.