Levine, E., & Nelson, K. (2007). Henry's freedom box. Scholastic Press.
Lua i Stíl Chicago (17ú heag.)Levine, Ellen, agus Kadir Nelson. Henry's Freedom Box. New York: Scholastic Press, 2007.
Lua MLA (9ú heag.)Levine, Ellen, agus Kadir Nelson. Henry's Freedom Box. Scholastic Press, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.