Mark S. Smith, “Treblinka Survivor. The Life and Death of Hershl Sperling”, The History Press, Stroud 2010, s.123
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Pamięć Treblinki – Fundacja Ochrony Pamięci Obozu Zagłady w Treblince
Mark S. Smith, “Treblinka Survivor. The Life and Death of Hershl Sperling”, The History Press, Stroud 2010, s.123
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