The Echo, by Giles A. Lutz.  A Double D Western. 1st Edition published in 1979 by Doubleday & Company of New York. 

Condition:  X-Library with usual markings. DJ is sealed in an archival library jacket and appears to be Very Good. Book has a sound binding and clean and tight text. 8  1/2"  x  5  3/4" with 175 pages.