Infocom Documentation Project
- PDF file of scanned original game manual.
- http://infodoc.plover.net/manuals/zork3.pdf

David Tanguay's Review
- Rated +1 on -5 to +5 scale. "Although it is difficult, it is not frustrating because the difficulty is in overcoming the challenges, not in finding or recognising them."
- http://www.sentex.net/~datanguayh/games/zork03_rev.html

Infocom Games: Zork III
- Game information, box photos and blurb, specifications, release information, and sample transcript from manual.
- http://www.infocom-if.org/games/zork3/zork3.html

Infocom Homepage: Zork III
- Description, release information, statistics, packaging details.
- http://www.csd.uwo.ca/Infocom/zork3.html