Rogal, B. (1974). Subdivision improvement guarantees. American Society of Planning Officials.
Lua i Stíl Chicago (17ú heag.)Rogal, Brian. Subdivision Improvement Guarantees. Chicago: American Society of Planning Officials, 1974.
Lua MLA (9ú heag.)Rogal, Brian. Subdivision Improvement Guarantees. American Society of Planning Officials, 1974.
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