Commutation time (at 15 minute intervals) and distribution of population, Los Angeles County, 1930.
1 : 1200000 Commuting California Los Angeles County. Hand colored. "Source: Regional Planning Commission, Los Angeles." United States. Federal Housing Administration. Division of Economics & Statistics. [Washington, D.C.?] Federal Housing Administration, Division of Economics and Statistics
Pictorial map of the Los Angeles metropolitan district: a complete geographical guide to the fastest growing territory in the entire world / drawn for the Los Angeles times by Charles H. Owens.
"Showing in accurate detail and in relief the location of cities, towns, highways, railroads, water courses, coast developments, parks, airports, government stations, oil fields, natural landmarks, etc." Includes index. Owens, Charles H. Los Angeles, Calif.] : Los Angeles times