Planet, L. (2011). 48 hours in san francisco: Chapter from usa's best trips, a travel guide (1.).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPlanet, Lonely. 48 Hours in San Francisco: Chapter from Usa's Best Trips, a Travel Guide. 1. 2011.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPlanet, Lonely. 48 Hours in San Francisco: Chapter from Usa's Best Trips, a Travel Guide. 1. 2011.
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