Pennsylvania. State Planning Board. (1949). Planning and zoning powers and procedures in the Commonwealth of Pennsylvania (Rev. ed.). [s.n.].
Citace podle Chicago (17th ed.)Pennsylvania. State Planning Board. Planning and Zoning Powers and Procedures in the Commonwealth of Pennsylvania. Rev. ed. Harrisburg: [s.n.], 1949.
Citace podle MLA (9th ed.)Pennsylvania. State Planning Board. Planning and Zoning Powers and Procedures in the Commonwealth of Pennsylvania. Rev. ed. [s.n.], 1949.
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