THE BREAKTHROUGHS OF CYDONIA
n.p. Privately Printed, 1991. First Edition. Soft cover. This Richard C. Hoagland booklet about the planet Mars, THE BREAKTHROUGHS OF CYDONIA. This is the First (and only?) Edition thus, printed April 16, 1991, so stated. Hoagland is associated with several publications dealing with purported structures built on Mars, centered on.....