41
42
Published 1997
43
by Bush, George
Published 1998
44
by Rubinstein, Alvin Z.
Published 1985
45
by Kirk, Donald, 1938-
Published 1998
46
Published 2001
47
by Dixit, J. N, 1936-
Published 2002
48
49
50
by Friedberg, Aaron L.
Published 2011
51
Published 1990
52
by Kagan, Donald
Published 2000
53
54
Published 1971
55
Published 1949
56
by Smith, Karen E
Published 1999
57
by Spanier, John
Published 1985
58
Published 1991
59
by Lo, Chi-kin, 1958-
Published 1989
60
by Blitz, Amy, 1961-
Published 2000