Agay, D. (1971). The Twentieth century: A repertory of piano works by major composers of our time. Yorktown Music Press.
Lua i Stíl Chicago (17ú heag.)Agay, Denes. The Twentieth Century: A Repertory of Piano Works by Major Composers of Our Time. New York: Yorktown Music Press, 1971.
Lua MLA (9ú heag.)Agay, Denes. The Twentieth Century: A Repertory of Piano Works by Major Composers of Our Time. Yorktown Music Press, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.