Haxthausen, C. W. (2004). Notes on Cubism: Carl Einstein. October.
Lua i Stíl Chicago (17ú heag.)Haxthausen, Charles W. "Notes on Cubism: Carl Einstein." October 2004.
Lua MLA (8ú heag.)Haxthausen, Charles W. "Notes on Cubism: Carl Einstein." October, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.