"Short Range Transit Plan"(PDF). San Francisco Municipal Transportation Agency. December 3, 2019. Archived(PDF) from the original on June 5, 2020. Retrieved December 27, 2021.
Laubscher, Rick (February 1, 2022). "Modernizing Muni: 1963-1982". Market Street Railway. Retrieved February 27, 2023.
web.archive.org
"Short Range Transit Plan"(PDF). San Francisco Municipal Transportation Agency. December 3, 2019. Archived(PDF) from the original on June 5, 2020. Retrieved December 27, 2021.