Great Mysteries of the 20th Century

Editors. — Reader's Digest, 2000. — 160 р. — ISBN: 978-0762102686.Looks at mysteries and puzzles of the twentieth century, including strange disappearances, paranormal phenomena, mysteries of modern science, and mysterious deaths.
From the death of Marilyn Monroe to the disappearance of Agatha Christie (stranger than her own novels), here is the truth about spontaneous human combustion, the theories about enormous (and perfect) crop circles, and much more.