Siegan, B. H. (1972). Land use without zoning. Lexington Books.
Lua i Stíl Chicago (17ú heag.)Siegan, Bernard H. Land Use Without Zoning. Lexington, Mass: Lexington Books, 1972.
Lua MLA (9ú heag.)Siegan, Bernard H. Land Use Without Zoning. Lexington Books, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.