Great Mysteries of the 20th CenturyBook - 1999
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.
Publisher: Pleasantville, N.Y. : Reader's Digest, c1999.
Characteristics: 160 p. : ill. (some col.), col. maps ; 30 cm.
Alternative Title: Great mysteries of the twentieth century