Johnson, U. E. (1977). Ambroise vollard editeur prints, books, bronzes. The Museum of Modern Art.
Lua i Stíl Chicago (17ú heag.)Johnson, Una E. Ambroise Vollard Editeur Prints, Books, Bronzes. The Museum of Modern Art, 1977.
Lua MLA (8ú heag.)Johnson, Una E. Ambroise Vollard Editeur Prints, Books, Bronzes. The Museum of Modern Art, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.