Rogers, R. G., & Gumuchdjian, P. (1998). Cities for a small planet. Westview.
Lua i Stíl Chicago (17ú heag.)Rogers, Richard George, agus Philip Gumuchdjian. Cities for a Small Planet. Boulder, Colo.: Westview, 1998.
Lua MLA (8ú heag.)Rogers, Richard George, agus Philip Gumuchdjian. Cities for a Small Planet. Westview, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.