Cunningham. Growth of Eng. Industry and Com. in Mod. Times; 109, Cambridge, 1892. Cited in Karl Frederick Geiser, Redemptioners and indentured servants in the colony and commonwealth of Pennsylvania, Supplement to the Yale Review, Vol. X, No. 2, August, 1901. "There was a popular prejudice against subjecting Christians into slavery or selling them into foreign parts, but Cromwell did not draw any such distinctions. Not only did his agents systematically capture Irish youths and girls for export to the West Indies, but all the garrison who were not killed in the Drogheda Massacre were shipped as slaves to the Barbadoes." نسخة محفوظة 2016-04-05 في Wayback Machine
August 1650: An Act for the Advancing and Regulating of the Trade of this Commonwealth, Acts and Ordinances of the Interregnum, 1642-1660. Originally published by His Majesty's Stationery Office, London, 1911. "The Parliament of England taking into their care the maintenance and advance of the Traffick Trade, and several Manufactures of this Nation; and being desirous to improve and multiply the same for the best advantage and benefit thereof, to the end that ye poore people of this Land may be set on work, and their Families preserved from Beggary and Ruine, and that the Commonwealth might be enriched thereby, and no occasion left either for Idleness or Poverty:..." نسخة محفوظة 2018-09-19 في Wayback Machine
Maxwell-Stewart، Hamish؛ Watkins، Emma (n.d.). "Transportation". Digital Panopticon. Digital Panopticon Project. مؤرشف من الأصل في 2019-01-08. اطلع عليه بتاريخ 2019-02-07.
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Maxwell-Stewart، Hamish؛ Watkins، Emma (n.d.). "Transportation". Digital Panopticon. Digital Panopticon Project. مؤرشف من الأصل في 2019-01-08. اطلع عليه بتاريخ 2019-02-07.
August 1650: An Act for the Advancing and Regulating of the Trade of this Commonwealth, Acts and Ordinances of the Interregnum, 1642-1660. Originally published by His Majesty's Stationery Office, London, 1911. "The Parliament of England taking into their care the maintenance and advance of the Traffick Trade, and several Manufactures of this Nation; and being desirous to improve and multiply the same for the best advantage and benefit thereof, to the end that ye poore people of this Land may be set on work, and their Families preserved from Beggary and Ruine, and that the Commonwealth might be enriched thereby, and no occasion left either for Idleness or Poverty:..." نسخة محفوظة 2018-09-19 في Wayback Machine
Cunningham. Growth of Eng. Industry and Com. in Mod. Times; 109, Cambridge, 1892. Cited in Karl Frederick Geiser, Redemptioners and indentured servants in the colony and commonwealth of Pennsylvania, Supplement to the Yale Review, Vol. X, No. 2, August, 1901. "There was a popular prejudice against subjecting Christians into slavery or selling them into foreign parts, but Cromwell did not draw any such distinctions. Not only did his agents systematically capture Irish youths and girls for export to the West Indies, but all the garrison who were not killed in the Drogheda Massacre were shipped as slaves to the Barbadoes." نسخة محفوظة 2016-04-05 في Wayback Machine