The crack in the universe what you have not been told about flying saucers /
Bourret, Jean Claude.
Creighton, Gordon.
St Helier Spearman (Jersey) Sudbury Distributed by Spearman
[1977]
Translation of: 'La nouvelle vague des soucoupes volantes'. Paris : Editions France-Empire, 1974
Bibliography: p.255-263
Unidentified flying objects