APA

Highway research board. Bibliography nr 31, . (1962). Human variables in traffic accidents. A digest of research and selected bibliography. Washington DC: Highway research board. Bibliography nr 31.

Chicago

Highway research board. Bibliography nr 31, . 1962. Human variables in traffic accidents. A digest of research and selected bibliography. Washington DC: Highway research board. Bibliography nr 31.

Harvard

Highway research board. Bibliography nr 31, . (1962). Human variables in traffic accidents. A digest of research and selected bibliography. Washington DC: Highway research board. Bibliography nr 31.

MLA

Highway research board. Bibliography nr 31, . Human variables in traffic accidents. A digest of research and selected bibliography. Washington DC: Highway research board. Bibliography nr 31. 1962.