21
by English, Edward H.
Published 1989
22
Published 1993
23
Published 1992
24
Published 1993
25
Published 1993
26
27
Published 1990
28
by Kwan, C.H, 1957-
Published 1994
29
30
Published 1987
31
by March, G. Patrick, 1924-
Published 1996
32
Published 1989
33
Published 1995
34
by Rogachev, Igor A.
Published 1988
35
Published 1995
36
by Song, Ligang
Published 1996
37
Published 1997
38
Published 1984
39
by Klintworth, Gary, 1945-
Published 1995
40
Published 1992