1
by Lauren, Paul Gordon
Published 1988
2
by Pemberton, Jo-Anne
Published 2001
3
Published 1996
4
Published 1997
5
by Huntington, Samuel P.
Published 1991
6
Published 2007
7
by Handel, Michael I.
Published 1981
8
by Parkinson, F.
Published 1974
9
by Chomsky, Noam, 1928-
Published 2002
10
11
by Nye, Joseph S.
Published 1990
12
Published 1997
13
by Huntington, Samuel P.
Published 1991
14
Published 1991
15
Published 1990
16
by Macgregor, Douglas A.
Published 2003
17
by Odom, William E.
Published 1992
18
by Brzezinski, Zbigniew
Published 1993
19
by Copson, Raymond W.
Published 1994
20
by Brzezinski, Zbigniew K, 1928-
Published 1994