Rogal, B. (1974). Subdivision improvement guarantees. American Society of Planning Officials.
Chicago-referens (17:e uppl.)Rogal, Brian. Subdivision Improvement Guarantees. Chicago: American Society of Planning Officials, 1974.
MLA-referens (9:e uppl.)Rogal, Brian. Subdivision Improvement Guarantees. American Society of Planning Officials, 1974.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.