A Background Report for the Residential Zoning Study prepared by the San Francisco Department of City Planning (p. 5 of 7), May 5, 1975.
San Francisco Department of City Planning Residential Zoning Study Potrero Planning District #9 Potrero Boosters & Merchants Association Potrero Beautification Group, Inc. Potrero Hill Community Government Potrero Hill League of Active Neighbors potrero Hill Neighborhood House Potrero Hill Residents & Home Owners Council
http://hdl.handle.net/20.500.12352/islandora:114076