Armstrong, C. (1983). Death's head (1st U.S. ed.). Encore.
Lua i Stíl Chicago (17ú heag.)Armstrong, Campbell. Death's Head. 1st U.S. ed. New York: Encore, 1983.
Lua MLA (9ú heag.)Armstrong, Campbell. Death's Head. 1st U.S. ed. Encore, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.