Lua APA (7ú heag.)
Cullingworth, B., & Caves, R. W. (2014). Planning in the USA: Policies, issues, and processes (4th ed.). Routledge.
Lua i Stíl Chicago (17ú heag.)
Cullingworth, Barry, agus Roger W. Caves. Planning in the USA: Policies, Issues, and Processes. 4th ed. New York: Routledge, 2014.
Lua MLA (9ú heag.)
Cullingworth, Barry, agus Roger W. Caves. Planning in the USA: Policies, Issues, and Processes. 4th ed. Routledge, 2014.
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