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I came across this recently http://annex.retroarchive.org/crescent/index.html
Full Moon (Crescent) Software is now in the public domain.
I remember using these products with QuickBASIC 4.5 many years ago.
WOW! What a ton of information. I have the book. Will be very useful once the manual scans are made available.
As soon as I get the scanner built, I'll get to scanning. The manuals are due to arrive at my home today.