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From Trekipedia
"Demons of Air and Darkness (Novel)|Demons of Air and Darkness]]." Star Trek: Deep Space Nine - Star Trek: Gateways, Book 4. Novel. Pocket Books. September 2001.
"Demons of Air and Darkness (Novel)|Demons of Air and Darkness]]." Star Trek: Deep Space Nine - Star Trek: Gateways, Book 4. Novel. Pocket Books. September 2001.
