APA
California Public Utilities Commission. Transportation Division, . (1968). Railroad accidents reported under general order No. 22-B for year 1967. Annual report. San Francisco, CA: California Public Utilities Commission. Transportation Division.
Chicago
California Public Utilities Commission. Transportation Division, . 1968. Railroad accidents reported under general order No. 22-B for year 1967. Annual report. San Francisco, CA: California Public Utilities Commission. Transportation Division.
Harvard
California Public Utilities Commission. Transportation Division, . (1968). Railroad accidents reported under general order No. 22-B for year 1967. Annual report. San Francisco, CA: California Public Utilities Commission. Transportation Division.
MLA
California Public Utilities Commission. Transportation Division, . Railroad accidents reported under general order No. 22-B for year 1967. Annual report. San Francisco, CA: California Public Utilities Commission. Transportation Division. 1968.