"...and some were human"
Subtitle: a dozen
By: by Lester del Rey; with drawings by Sol Levin
Contributors: Levin, Sol, ill; Tschirky, L. Robert, bookjacket designer
Publisher: Prime Press
Published: 1948
Place of publication: Philadelphia
Language: eng
Number of pages: 331
Subjects: American Science fiction
Notes: Currey, L. W.  Science fiction and fantasy authors, p. 142

Reginald, R.  Science fiction and fantasy literature, p. 143