Brief review to be added of “Fifty Years of UFOs” (1997) (available on Amazon USA and on Amazon UK) by John Spencer and Anne Spencer.

1. Web Resources

2. Book References

3. Other material

Web Resources

There is a rapid turnover of UFO material on the Internet. Many links to material on UFO websites quickly become out of date. Therefore, instead of giving many links to specific webpages I have instead focused on providing tables of references to discussion of UFO incidents, personalities and other matters in various books. Those tables of references to discussion in books can be sorted by author, length and date. I hope these tools are useful.

Book References

Please use the comments section at the bottom of this page to share any relevant book references or other useful resources.

Other Material

Please use the comments section below to share references to any particularly interesting relevant articles.