The UFO Encyclopedia, 3rd Ed.de Jerome Clark, Angela L WilliamsEdiciones (1)The UFO Encyclopedia, 3rd Ed. (2018)Omnigraphics, Inc. · ISBN 9780780816596Más obras de Jerome ClarkTThe emergence of a phenomenonThe emergence of a phenomenonHidden realities, lost civilizations, and beings from other worldsHidden realms, lost civilizations, and beings from other worlds