(en) « Liberty Party | political party, UnitedStates », sur Encyclopedia Britannica (consulté le 4 juin 2020). (en-US) « Liberty Party », sur encyclopedia
Finance, NYC, dans le Daily Telegraph [54] "Handbook of labor statistics", numéro 616, Bureau of Labor Statistics (en) "Technology and Boundary-marking in
conquista coloniale di Crispi, Istituto Luigi Sturzo Nation-building in 19th-century Italy: the case of Francesco Crispi, Christopher Duggan, History Today
Sean Wilentz, The Kingdom of Matthias : A Story of Sex and Salvation in 19th-Century America, New York, Oxford University Press, USA, 28 avril 1994, 244 p
passionate soliloquy about Geoism (the land-tax movement inspired by the 19th-century political economist Henry George)". John Caldwell, American paintings