the imagined superiority of British people and northwestern Europeans over central and southern Europeans, let alone Africans, Asians, and North American
2012-03-01 [2012-03-07]. (原始内容存档于2012-03-06). South Africa's bitter harvest (页面存档备份,存于互联网档案馆). SouthAfricans' long wait for land (页面存档备份,存于互联网档案馆), BBC
Expansion of America. Turning Points in History Series. ABC-CLIO. 2007: 238. ISBN 978-1-85109-833-0. The Civil War and emancipation 1861–1865. Africans in America