There are 2 books by Douglas Heggie on BookOrb. A strong starting point is Megalithic Science (1982). The bibliography below is in publication order, with series grouped in reading order.
Standalone books
Showing 1 of 2 titles.
Frequently asked questions
How many books has Douglas Heggie written?
BookOrb lists 2 books by Douglas Heggie.
Where should I start with Douglas Heggie?
A good starting point is Megalithic Science (1982).
What is the Douglas Heggie books in order list?
In publication order: 1. Megalithic Science (1982).