Arkins, A., Popica, O., Bisping, M., Johnson, B., Faulkner, J., Calchetti, G., & Al Rashid, H. (2021). Never back down. Sony Pictures Home Entertainment.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रArkins, Audrey, Olivia Popica, Michael Bisping, Brooke Johnson, James Faulkner, Gianni Calchetti, और Hannah Al Rashid. Never Back Down. Culver City, CA: Sony Pictures Home Entertainment, 2021.
एमएलए (8वां संस्करण) प्रशस्ति पत्रArkins, Audrey, et al. Never Back Down. Sony Pictures Home Entertainment, 2021.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.