The strange invaders
By: by Alun Llewellyn
Publisher: G. Bell
Published: 1934
Place of publication: London
Language: eng
Number of pages: 309
Subjects: English Science fiction; Biological science fiction
Notes: Bleiler, E.F.  The Checklist of Science-Fiction & Supernatural Fiction, p. 125

Reginald, R.  Science fiction and fantasy literature, p. 324