1984 novel by David Gerrold

episode of The Twilight Zone (S1 E58)

1983 novel by David Gerrold

episode of The Twilight Zone

episode of Babylon 5 (S1 E10)

episode of the animated Star Trek TV series

Star Trek screenplay

short story by David Gerrold and Ctein

episode of Land of the Lost (S1 E1)

episode of Land of the Lost (S1 E17)

short story

1987 novel by David Gerrold

episode of Land of the Lost (S1 E16)

episode of Star Trek: The Original Series (S2 E8)

short story by David Gerrold

novel by David Gerrold

1998 novella by David Gerrold

2007 film by Menno Meyjes

1977 science fiction novel by David Gerrold

episode of the animated Star Trek TV series

2013 short story by David Gerrold

science fiction anthology

series of science fiction novels by American writer David Gerrold

episode of Superboy (S3 E9)

novel by David Gerrold

book by David Gerrold and Larry Niven

novel by David Gerrold

1992 short story by David Gerrold

1973 novel by David Gerrold

1994 novelette by David Gerrold

episode of Land of the Lost (S1 E12)

episode of Land of the Lost (S1 E2)

15th episode of the second season of Star Trek: The Original Series

book by David Gerrold

1972 novel by David Gerrold

1972 novel by David Gerrold

1989 paperback edition (en)

paperback edition (en)

book edition published in 2014

1971 paperback edition (en)

1997 paperback edition (en)

book edition published in 1996