2004. DTIS. Bay Area Bridges. Includes San Francisco-Oakland Bay Bridge, Golden Gate Bridge, Third Street Bridge. San Francisco (Calif.). Department Of Telecommunications and Information Services.
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2004. ESRI. Bay Area - General outline of San Francisco, ocean and bay, and other counties. San Francisco (Calif.). Department Of Telecommunications and Information Services.
2004. ESRI. Bay Area ZIP Code Areas. San Francisco (Calif.). Department Of Telecommunications and Information Services.