Vieth, Reinhold. Agarwal, Sabrina C; Stout, Sam D , 编. Effects of vitamin D on bone and natural selection of skin color: how much vitamin D nutrition are we talking about?. New York: Kluwer Academic/Plenum Press. 2003: 139–154. ISBN 978-1-4613-4708-8. doi:10.1007/978-1-4419-8891-1.
Cleaver, J. E.; Crowely, E. UV damage, DNA repair and skin carcinogenesis. Frontiers in Bioscience. 2002, 7 (1–3): 1024–1043. PMID 11897551. doi:10.2741/cleaver.
Tadokoro, T.; et al. Mechanisms of skin tanning in different racial/ethnic groups in response to ultraviolet radiation. Journal of Investigative Dermatology. 2005, 124 (6): 1326–1332. PMID 15955111. doi:10.1111/j.0022-202X.2005.23760.x.
Nielsen, K.P.; et al. The importance of the depth distribution of melanin in skin for DNA protection and other photobiological processes. Journal of Photochemistry and Photobiology B: Biology. 2006a, 82 (3): 194–198. PMID 16388960. doi:10.1016/j.jphotobiol.2005.11.008.
Cleaver, J. E.; Crowely, E. UV damage, DNA repair and skin carcinogenesis. Frontiers in Bioscience. 2002, 7 (1–3): 1024–1043. PMID 11897551. doi:10.2741/cleaver.
Tadokoro, T.; et al. Mechanisms of skin tanning in different racial/ethnic groups in response to ultraviolet radiation. Journal of Investigative Dermatology. 2005, 124 (6): 1326–1332. PMID 15955111. doi:10.1111/j.0022-202X.2005.23760.x.
Nielsen, K.P.; et al. The importance of the depth distribution of melanin in skin for DNA protection and other photobiological processes. Journal of Photochemistry and Photobiology B: Biology. 2006a, 82 (3): 194–198. PMID 16388960. doi:10.1016/j.jphotobiol.2005.11.008.
O'Neil, Dennis. Skin Color Adaptation. Human Biological Adaptability: Skin Color as an Adaptation. Palomar. [10 December 2012]. (原始内容存档于18 December 2012).
Oxford Dictionaries. April 2010. Oxford University Press. "belonging to or denoting a human group having light-coloured skin""white" (accessed 6 August 2012).
O'Neil, Dennis. Skin Color Adaptation. Human Biological Adaptability: Skin Color as an Adaptation. Palomar. [10 December 2012]. (原始内容存档于18 December 2012).