21
Published 1985
22
by Marshall, Peter
Published 1997
23
by Rosecrance, Richard N.
Published 1963
24
by Kegley, Charles W.
Published 1997
25
Published 2003
26
by Keylor, William R, 1944-
Published 1992
27
28
by Larsen, Henrik
Published 1998
29
Published 1984
30
by Gupta, M. G.
Published 1986
31
Published 1990
32
by Herring, Eric
Published 1995
33
by Forsythe, David P.
Published 2012
34
by Metzler, John J.
Published 2001
35
Published 1994
36
by Rosenau, James N
Published 1980
37
by Bennett, D. Scott
Published 2003
Get full text
38
Published 2000
39
Published 1964
40
by Rosenau, James N
Published 1980