• Richmond Laurin Hawkins, Positivism In The United States (1853-1861) (Harvard: University Press, 1938). ISBN 9780674183605 HUP
  • Gillis J. Harp, Positivist Republic: Auguste Comte and the Reconstruction of American Liberalism. 1865—1920 (Penn State University, 1995). Goolge Books

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