”Names and Labels: Social, Racial, and Ethnic Terms § 15. Caucasoid”, The American Heritage® Book of English Usage. Houghton Mifflin Harcourt, 2009. ISBN 0395767857. (englanniksi) ”race.” Encyclopedia of Public Health. The Gale Group, Inc, 2002. Answers.com 23 Jan. 2008. http://www.answers.com/topic/race-1: Now, scientists from many disciplines (e.g., genetics, anthropology, sociology, biology) agree that there are no distinct human races as was previously claimed.
stanford.edu
plato.stanford.edu
James, Michael: Race 28.5.2008. The Stanford Encyclopedia of Philosophy. Viitattu 18.7.2008. (englanniksi)
