Carroll, J., & Johnston, T. (1988). Insight guides: Northern California. APA Pub.
Lua i Stíl Chicago (17ú heag.)Carroll, Jon, agus Tracy Johnston. Insight Guides: Northern California. Singapore: APA Pub, 1988.
Lua MLA (9ú heag.)Carroll, Jon, agus Tracy Johnston. Insight Guides: Northern California. APA Pub, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.