Bourdon, D. (1971). Christo: Text by David Bourdon. Abrams.
Lua i Stíl Chicago (17ú heag.)Bourdon, David. Christo: Text by David Bourdon. New York: Abrams, 1971.
Lua MLA (8ú heag.)Bourdon, David. Christo: Text by David Bourdon. Abrams, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.