Dyfyniad APA
Cullingworth, J. B. (1997). Planning in the USA: Policies, issues, and processes. Routledge.
Dyfyniad Arddull Chicago
Cullingworth, J. B. Planning in the USA: Policies, Issues, and Processes. London ; New York: Routledge, 1997.
Dyfyniad MLA
Cullingworth, J. B. Planning in the USA: Policies, Issues, and Processes. Routledge, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.