Tham khảo Lao động có khế ước

  1. ↑ Whaples, Robert (tháng 3 năm 1995). “Where Is There Consensus Among American Economic Historians? The Results of a Survey on Forty Propositions”. The Journal of Economic History 55 (1): 139–154. JSTOR 2123771. doi:10.1017/S0022050700040602. ...[the] vast majority [of economic historians and economists] accept the view that indentured servitude was an economic arrangement designed to iron out imperfections in the capital market.  Đã bỏ qua tham số không rõ |citeseerx= (trợ giúp)
  2. ↑ Galenson 1984: 1
  3. ↑ John Donoghue, "Indentured Servitude in the 17th Century English Atlantic: A Brief Survey of the Literature," History Compass (2013) 11#10 pp 893–902.
  4. ↑ Christopher Tomlins, "Reconsidering Indentured Servitude: European Migration and the Early American Labor Force, 1600–1775," Labor History (2001) 42#1 pp 5–43, at p.
  5. ↑ Tomlins (2001) at notes 31, 42, 66
  6. ↑ Gary Nash, The Urban Crucible: The Northern Seaports and the Origins of the American Revolution (1979) p 15
  7. ↑ "trepan | trapan, n.2". OED Online. June 2017. Oxford University Press
  8. ↑ Richard Hofstadter (1971). America at 1750: A Social Portrait. Knopf Doubleday. tr. 36. ISBN 9780307809650. 
  9. ↑ Lerone Bennett, Jr. (tháng 11 năm 1969). White Servitude in America. Ebony Magazine. tr. 31–40. 
  10. ↑ Calendar of State Papers: Colonial series. Great Britain. Public Record Office. 1893. tr. 521. 
  11. ↑ Calendar of State Papers: Colonial series. Great Britain. Public Record Office. 1893. tr. 36.