Brown, J., & Galassi, S. G. (2006). Goya's Last Works: The Frick Collection, New York. Jonathan Brown; Susan Grace Galassi. Yale Univ. Press.
Lua i Stíl Chicago (17ú heag.)Brown, Jonathan, agus Susan Grace Galassi. Goya's Last Works: The Frick Collection, New York. Jonathan Brown; Susan Grace Galassi. New Haven, Conn. [u.a.]: Yale Univ. Press, 2006.
Lua MLA (8ú heag.)Brown, Jonathan, agus Susan Grace Galassi. Goya's Last Works: The Frick Collection, New York. Jonathan Brown; Susan Grace Galassi. Yale Univ. Press, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.