Pstalemate by Lester del Rey PB 1st Berkley (1973)

Attack from Atlantis Lester del Rey PB 1st Del Rey (1978)

del Rey, Lester; Pohl Frederik - Preferred Risk PB 1st Printing 1980 Good

del Rey, Lester - Attack from Atlantis PB 1969 Good-

del Rey, Lester - Rocket Jockey PB 1st Printing 1978 Very Good

Attack from Atlantis by Lester Del Rey (1978, Mass Market) Sf1

Attack from Atlantis Lester Del Rey Science Fiction Paperback B-1

Attack from Atlantis by Lester Del Rey - Tempo 1st Printing 1969 - Paperback