Weiss, P. r. (1981). The investigation: Play. Atheneum.
Lua i Stíl Chicago (17ú heag.)Weiss, Pete r. The Investigation: Play. New York: Atheneum, 1981.
Lua MLA (9ú heag.)Weiss, Pete r. The Investigation: Play. Atheneum, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.