Burgess, E. W., & Bogue, D. J. (1964). Contributions to urban sociology. University of Chicago Press.
Lua i Stíl Chicago (17ú heag.)Burgess, Ernest Watson, agus Donald Joseph Bogue. Contributions to Urban Sociology. Chicago: University of Chicago Press, 1964.
Lua MLA (9ú heag.)Burgess, Ernest Watson, agus Donald Joseph Bogue. Contributions to Urban Sociology. University of Chicago Press, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.