Campbell. The Laws of Slavery in Texas. University of Texas Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCampbell. The Laws of Slavery in Texas. University of Texas Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCampbell. The Laws of Slavery in Texas. University of Texas Press.
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