They walk by night / Michael Hervey.

Bibliographic Details

Main Author:	Hervey, Michael
Language:	English
Published:	New York, N.Y. : Ace Books, [1968], ©1968.
Series:	An Ace star book ; K-300
Subjects:	Curiosities and wonders.
Physical Description:	155 pages ; 18 cm.
Format:	Book