WAlpha Centauri or Die!WBadge of InfamyWCaptives of the FlameWCat's CradleWDanny Dunn, Time TravelerWDestination MarsWDr. Bloodmoney, or How We Got Along After the BombWDolphin Island (novel)WThe Dragon MastersWFar RainbowWFifth Planet (novel)WThe Game-Players of TitanWGlide PathWKey Out of TimeWThe StardroppersWLords of the PsychonWThe Man Who Fell to Earth (novel)WPlanet of the Apes (novel)WPodkayne of MarsWSpace VikingWStar SurgeonWThe StardroppersWWay Station (novel)WWitch World (novel)