UFO Book (Preview): 

“Unconventional Flying Objects: A Scientific Analysis”
by Paul R. Hill 

The book was published by Hampton Roads Publishing Company, Inc., Charlottesville, Virginia, on 1 December 1995:

Source: redwheelweiser.com

http://redwheelweiser.com/downloads/unconventionalflyingobjects.pdf

The late Paul R. Hill, U.S. Aerodynamicist

(nasamedia.lunaimaging.com photo) 

(amazon.com image)