61
by Mamdani, Mahmood, 1946-
Published 2004
62
Published 2005
63
Published 2006
64
Published 2006
65
by Guo Xinning
Published 2005
66
Published 1994
67
by Lebovic, James H.
Published 2007
68
69
by Wilkinson, Paul, 1937-
Published 2001
70
Published 1991
71
by Lansford, Tom
Published 2006
72
73
Published 2006
74
Published 1982
75
by Bean, Harold G, 1929-
Published 1987
76
77
by Mackey, Chris
Published 2004
78
by Emerson, Steven.
Published 2006
79
80