Stout, S. K., & Docampo, V. (2012). Penelope Crumb. Philomel Books.
Lua i Stíl Chicago (17ú heag.)Stout, Shawn K., agus Valeria Docampo. Penelope Crumb. New York: Philomel Books, 2012.
Lua MLA (8ú heag.)Stout, Shawn K., agus Valeria Docampo. Penelope Crumb. Philomel Books, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.