Lingens-Reiner, E. (1948). Prisoners of fear. London: Gollancz.
Lua i Stíl Chicago (17ú heag.)Lingens-Reiner, E. Prisoners of Fear. London: Gollancz, 1948.
Lua MLA (8ú heag.)Lingens-Reiner, E. Prisoners of Fear. London: Gollancz, 1948.
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