Hewitt, M., & Hagan, . S. (2001). City fights: Debates on urban sustainability. James & James (Science Publishers).
Lua i Stíl Chicago (17ú heag.)Hewitt, Mark, agus Susannah Hagan. City Fights: Debates on Urban Sustainability. London: James & James (Science Publishers), 2001.
Lua MLA (8ú heag.)Hewitt, Mark, agus Susannah Hagan. City Fights: Debates on Urban Sustainability. James & James (Science Publishers), 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.