Capsule Review by Matthew Murray: "Infocom's first and only attempt at a true horror story succeeds with a vengeance, and Dave Lebling is in his finest form in The Lurking Horror."
Infocom Documentation Project: PDF file of scanned original game manual.
Infocom Games: Lurking Horror: Short introduction and specs.
Infocom Homepage: The Lurking Horror: Description, box art, release information, statistics, and packaging details.
Status Line: Is It GUE Tech or MIT? Dave Lebling Explains It...: The author talks about locations in the game based on actual sites at Massachusetts Institute of Technology.
Status Line: The Lurking Horror and Stationfall: Text of game announcement from Infocom's newsletter.
The Infocom Gallery: The Lurking Horror: High-quality scans of the gray box, manual, and ID card.