The chroniclers :

Eitemau Tebyg

• The frontiersmen :
  gan: Time-Life Books
  Cyhoeddwyd: (1977)
• The american heritage history of the great west.
  gan: Lavender, David Sievert
  Cyhoeddwyd: (1965)
• The american west in the nineteenth century : 255 illustrations from "harper's weekly" and other contemporary sources /
  gan: Grafton, John, Edition
  Cyhoeddwyd: (1992)
• The american west in the nineteenth century : 255 illustrations from "harper's weekly" and other contemporary sources /
  gan: Grafton, John, Edition
  Cyhoeddwyd: (1992)
• Self-determination and history in the third world.
  gan: Gordon, David C
  Cyhoeddwyd: (1971)