Historical Society of Southern California, Los Angeles. University of California Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHistorical Society of Southern California, Los Angeles. University of California Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHistorical Society of Southern California, Los Angeles. University of California Press.
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