Quoted, with permission, from Luther Gulick and L. Urwick, eds.,
Papers on the Science of Administration
(New York: Institute of Public Administration, 1937), p. 13.
 Quoted with the permission of Harcourt, Brace and Company,
Inc., from Karl Mannheim:
Ideology and Utopia,
translated by Louis Wirth and Edward Shils, 1936, p. 106.
The Theory and Practice of Modern Government
(New York: Dial Press,1934), p. 106.
 Quoted with permission from Robert E. Park and Ernest W. Burgess:
Introduction to the Science of Sociology,
2nd ed. (Chicago: University of Chicago Press, 1924), pp. 285-86.
 From W. Lloyd Warner and Paul S. Lunt: The Social Life of a Modern Community (New Haven: Yale University Press, 1941).
 Quoted with permission from Stuart Chase:
The Proper Study of Mankind
(New York:Harper and Brothers, 1948), p. 135.
 Quoted with permission from Lane Lancaster: Government in Rural America (New York: D. Van Nostrand Co., Inc., 1937), p. 311.
 Quoted with permission from
"The Problems of the Landrat," trans. by Roger H. Wells,
Journal of Politics, Vol. 11, no. 2 (1949), p. 333.
[l] Quoted, with permission, from Leland M. Goodrich:
"From League of Nations to United Nations,"
Vol. 1 (1947 ), p. 21.