21
22
23
Published 1989
24
by Hails, Christopher, 1950-
Published 1987
25
Published 2004
26
by Ho,Mae Wan
Published 2003
27
Published 2004
28
by Wilmut, Ian
Published 2000
29
by Ridpath,Ian
Published 1998
30
by Steel, Duncan
Published 2000
31
Published 2004
32
by Meres
Published 2002
33
by Nottingham
Published 2003
34
by Avise
Published 2002
35
by Rohwer, 1958-
Published 2002
36
37
by Hawking
Published 2001
38
by Thain
Published 2001
39
40