Cazeau, Charles J <br/><br/>
Exploring the unknown :  great mysteries reexamined / 
Charles J. Cazeau and Stuart D. Scott 
 - New York :  Plenum Press,  1979 
 - 283 p. :  ill. ;  24 cm. 
<br/><br/> Originally published under title: Great mysteries of the Earth 
<br/><br/>References : p. 273-276 
<br/><br/><label>ISBN: </label>0306402106 
<br/><br/><label>LCCN: </label>78-27413 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Civilization, Ancient<br/>Curiosities and wonders<br/>Flying saucers