Edited by Richard P. Nathan; Jerry A. Webman
Princeton Urban and Regional Research Center , 1980
Buku Teks
Guttmacher, Sally, author
Jossey-Bass, 2010
Buku Teks
Orleck, Annelise., author
Routledge, 2015
Buku Teks
Matthews, Mark Stanley.
Harper , 1954
Buku Teks
Gilbert, Glen G., author
Jones and Burtlet, 2011
Buku Teks