Sewell, A. (1991). Azabache (1a. ed.). Colicheuque.
Lua i Stíl Chicago (17ú heag.)Sewell, Anna. Azabache. 1a. ed. Chile: Colicheuque, 1991.
Lua MLA (9ú heag.)Sewell, Anna. Azabache. 1a. ed. Colicheuque, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.