Horvitz, R. J. (1974). Beyond Reductivism: The Work Of Alan Sondheim / von Robert Joseph Horvitz. Artforum.
Lua i Stíl Chicago (17ú heag.)Horvitz, Robert Joseph. "Beyond Reductivism: The Work Of Alan Sondheim / Von Robert Joseph Horvitz." Artforum 1974.
Lua MLA (8ú heag.)Horvitz, Robert Joseph. "Beyond Reductivism: The Work Of Alan Sondheim / Von Robert Joseph Horvitz." Artforum, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.