APA (7th ed.) Citation

Phillips, M., & Friauf, B. (2025). The purifying knife: The troubling history of eugenics in Texas. University of Oklahoma Press.

Chicago Style (17th ed.) Citation

Phillips, Michael, and Betsy Friauf. The Purifying Knife: The Troubling History of Eugenics in Texas. Norman: University of Oklahoma Press, 2025.

MLA (9th ed.) Citation

Phillips, Michael, and Betsy Friauf. The Purifying Knife: The Troubling History of Eugenics in Texas. University of Oklahoma Press, 2025.

Warning: These citations may not always be 100% accurate.