1
by Bush, George, 1924-
Published 1992
2
Published 1992
3
by Kryzanek, Michael J.
Published 1992
4
by Tahir-Kheli, Shirin R.
Published 1997
5
6
by Okbazghi, Yohannes
Published 1997
7
8
Published 1989
9
10
11
by Friedman, George.
Published 1991
12
by Cha, Victor D., 1961-
Published 1999
13
by Sutter, Robert G.
Published 1991
14
by Garten, Jeffrey E, 1946-
Published 1992
15
by Robinson, William I.
Published 1996
16
17
18
by Peace, Roger C, 1952-
Published 1991
19
by Cingranelli, David L.
Published 1993
20