描述
Explains that most sightings of unidentified flying objects are actually understandable phenomena and discusses the possibility of intelligent life existing elsewhere in the universe.
书籍详情
格式
精装书
页数
48 页
语言
英语
已发布
Jan 1, 1978
出版商
G.P. Putnam's Sons
ISBN-10
0399610898
ISBN-13
9780399610899