Cita APA

(1951). HIGHWAY research board, proceedings of the thirtieth annual meeting: Editors Roy W.Crum and Fred Burggraf and W.N.Carey. National research council.

Citación estilo Chicago

HIGHWAY Research Board, Proceedings of the Thirtieth Annual Meeting: Editors Roy W.Crum and Fred Burggraf and W.N.Carey. Washington: National research council, 1951.

Cita MLA

HIGHWAY Research Board, Proceedings of the Thirtieth Annual Meeting: Editors Roy W.Crum and Fred Burggraf and W.N.Carey. Washington: National research council, 1951.