1
by Gudgin, Peter
Published 1989
2
by Rose, Norman
Published 1994
3
by Aster, Sidney, 1942-
Published 1991
4
Published 1991
5
by Qasim Ahmad
Published 1992
6
by Al-Tajir Mahdi Abdalla
Published 1987
7
8
9
by Remme, Tilman
Published 1995
10
by Grasselli, Gabriella
Published 1996
11
by Anderson, Jeffrey J.
Published 1992
12
Published 1991
13
by Colvin, John
Published 1991
14
by McKercher, B.J.C, 1950-
Published 1989
15
by Olson, Robert W.
Published 1989
16
by Kinney, Douglas
Published 1989
17
Published 1995
18
Published 1991
19
by Bierman, John
Published 1990
20
by Whitaker, James
Published 1993