APA

Highway Research Board. Current road problems nr 9-4R, . (1962). Current practices for highway snow and ice control. Washington, DC: Highway Research Board. Current road problems nr 9-4R.

Chicago

Highway Research Board. Current road problems nr 9-4R, . 1962. Current practices for highway snow and ice control. Washington, DC: Highway Research Board. Current road problems nr 9-4R.

Harvard

Highway Research Board. Current road problems nr 9-4R, . (1962). Current practices for highway snow and ice control. Washington, DC: Highway Research Board. Current road problems nr 9-4R.

MLA

Highway Research Board. Current road problems nr 9-4R, . Current practices for highway snow and ice control. Washington, DC: Highway Research Board. Current road problems nr 9-4R. 1962.