Long, F. B. The Sky Trap.
Lua i Stíl Chicago (17ú heag.)Long, Frank Belknap. The Sky Trap.
Lua MLA (9ú heag.)Long, Frank Belknap. The Sky Trap.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)