Helps, A., & Oppenheim, M. (1900). The Spanish conquest in America: And its relation to the history of slavery and to the government of colonies (A new ed., edited, with an introduction, maps, and notes by M. Oppenheim.). London, New York: John Lane.

Helps, Arthur, and Michael Oppenheim. The Spanish Conquest in America: And Its Relation to the History of Slavery and to the Government of Colonies. A new ed., edited, with an introduction, maps, and notes by M. Oppenheim. London, New York: John Lane, 1900.

Helps, Arthur, and Michael Oppenheim. The Spanish Conquest in America: And Its Relation to the History of Slavery and to the Government of Colonies. A new ed., edited, with an introduction, maps, and notes by M. Oppenheim. London, New York: John Lane, 1900.