Spens, M. (2003). Modern landscape. Phaidon Press.
Lua i Stíl Chicago (17ú heag.)Spens, Michael. Modern Landscape. London ; New York: Phaidon Press, 2003.
Lua MLA (8ú heag.)Spens, Michael. Modern Landscape. Phaidon Press, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.