Lua APA (7ú heag.)

Não informado. Urban and regional technology and development. U.S. Department of Commerce, National Technical Information Service.

Lua i Stíl Chicago (17ú heag.)

Não informado. Urban and Regional Technology and Development. Springfield, Va: U.S. Department of Commerce, National Technical Information Service.

Lua MLA (8ú heag.)

Não informado. Urban and Regional Technology and Development. U.S. Department of Commerce, National Technical Information Service.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.