• Excursions of an evolutionist 

  Fiske, John, 1842-1901 (Boston & New York: Houghton Mifflin Company, 1911)

• Republics of central and south America: Their resources, industries, sociology and future 

  Enock, C. Reginald (Charles Reginald), 1868-1970 (New York: Charles Scribner's Sons, 1922)

• Christianity and the social state 

  Lorimer, George Claude, 1838-1904 (Philadelphia: A. F. Rowland, 1898)

• Social statics, or, the conditions essential to human happiness specified, and the first of them developed 

  Spencer, Herbert, 1820-1903 (New York: D. Appleton & Company, 1881)

• Ancient society, or, researches in the lines of human progress from savagery through barbarism to civilization 

  Morgan, Lewis Henry, 1818-1881 (Chicago: Charles H. Kerr & Company, 1907)

• Studies in the theory of human society 

  Giddings, Franklin Henry, 1855-1931 (New York: The Macmillan Company, 1926)

• Challenge of the country, the: A study of country life opportunity 

  Fiske, George Walter, 1872-1945 (New York: Young Men's Christian Association Press, 1912)

• Gesammelte aufsätze zur religionssoziologie, Vol. II: Hinduismus und buddhismus 

  Weber, Max, 1864-1920 (Tübingen: Verlag von J. C. B. Mohr, 1923)

• Theology for the social gospel 

  Rauschenbusch, Walter, 1861-1918 (New York: The Macmillan Company, 1918)

• Essays in social justice 

  Carver, Thomas Nixon, 1865-1961 (Cambridge: Havard University Press, 1940)

• Wirtschaft und recht nach der materialistischen geschichtsauffassung: Eine sozialphilosophische untersuchung 

  Stammler, Rudolf, 1856-1938 (Leipzig: Veit & Comp., 1896)

• Encyclopedia of social reforms, the 

  Bliss, William Dwight Porter, 1856-1926 (New York & London: Funk & Wagnalls Company, 1897)

• Individual and the social gospel, the 

  Mathews, Shailer, 1863-1941 (New York: Presbyterian Department of Missionary Education, 1914)

• Pure sociology: A treatise on the origin and spontaneous development of society 

  Ward, Lester Frank, 1841-1913 (New York: The Macmillan Company, 1921)

• Investigations representing the departments: Political economy, political science, history, sociology and anthropology. 

  University of Chicago (Chicago: University of Chicago Press, 1903)

• Adolescence: Its psychology and its relations to physiology, anthropology, sociology, sex, crime, religion, and education, vol. I 

  Hall, G. Stanley (Granville Stanley), 1844-1924 (New York: D. Appleton & Company, 1904)

• Soziologie, III Band: Abschluss der sozialphilosophie und allgemeine folgerungen 

  Comte, Auguste, 1798-1857 (Jena: Gustav Fischer, 1911)

• Studien über die bewegunsgesetze der gesellschaftlichen entwicklung 

  Liebknecht, Karl Paul August Friedrich, 1871-1919 (München: Kurt Wolff, 1922)

• Educational sociology 

  Snedden, David, 1868-1951 (New York: The Century Company, 1924)

• Gesammelte aufsätze zur religionssoziologie, Vol. III: Das antike judentum 

  Weber, Max, 1864-1920 (Tübingen: Verlag von J. C. B. Mohr, 1923)

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