Dumarest of Terra (18, 19, 20, 21, 23, 25, 27), by E. C. Tubb.
Published by Daw Books, 1978 onward.
x7 paperback books, 3 in plastic covers. Used, in fair condition. tanning to pages, some light fading to spines, and some general wear and ageing to covers.
7 editions of the Dumarest Saga, a series of self contained science fiction stories, featuring the adventures of a lost earthling looking for his home planet.
#18 Incident on Ath
#19 the Quillan Sector
#20 Web of Sand
#21 Iduna's Universe
#23 World of Promise
#25 The Terridae
#27 Earth is Heaven