1
2
Published 2007
3
Published 1997
4
by Cumings, Bruce
Published 1995
5
Published 1981
6
by Weinbaum, Marvin G.
Published 1992
7
Published 1989
8
Published 1996
9
by Das, Dilip K, 1945
Published 1993
10
11
by Ford, Glyn
Published 2008
12
Published 1994