Giedion-Welcker, C. (1960). Contemporary sculpture: An evolution in volume and space (3rd, rev. ed.). Wittenborn.
Lua i Stíl Chicago (17ú heag.)Giedion-Welcker, Carola. Contemporary Sculpture: An Evolution in Volume and Space. 3rd, rev. ed. New York: Wittenborn, 1960.
Lua MLA (8ú heag.)Giedion-Welcker, Carola. Contemporary Sculpture: An Evolution in Volume and Space. 3rd, rev. ed. Wittenborn, 1960.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.