333551 Walton, J., & Carns, D. E. (1977). Cities in change: Studies on the urban condition. Boston : Allun & Bacon.
Lua i Stíl Chicago (17ú heag.)333551 Walton, John, agus Donal E. Carns. Cities in Change: Studies on the Urban Condition. Boston : Allun & Bacon, 1977.
Lua MLA (9ú heag.)333551 Walton, John, agus Donal E. Carns. Cities in Change: Studies on the Urban Condition. Boston : Allun & Bacon, 1977.
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