Harris, Chauncy D.; Ullman, Edward L. The Nature of Cities. The Annals of the American Academy of Political and Social Science. 1945-01-01, 242: 7–17. JSTOR 1026055. doi:10.2307/1026055.
jstor.org
Harris, Chauncy D.; Ullman, Edward L. The Nature of Cities. The Annals of the American Academy of Political and Social Science. 1945-01-01, 242: 7–17. JSTOR 1026055. doi:10.2307/1026055.
