Secrets of Los Angeles A Guidebook to the City of Angels in the 1920s by Peter AperloPeter Aperlo, Paul Carrick, Mislet Michel2007PDF24 MB
Los Angeles metropolitan peak hour driving study, May 1962. Engineering Department, Automobile club of Southern California / Richard Bowler, manager. Peter G. Koltnow, traffic engineer.Automobile Club of Southern California. Engineering Department.1962