Ritchie, D. A. (1997). American history: The early years to 1877. New York: Glencoe/McGraw-Hill.
Trích dẫn kiểu ChicagoRitchie, Donald A. American History: The Early Years to 1877. New York: Glencoe/McGraw-Hill, 1997.
Deismireacht MLARitchie, Donald A. American History: The Early Years to 1877. New York: Glencoe/McGraw-Hill, 1997.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.