61
Published 1999
62
Published 1997
63
by Nafziger, E. Wayne.
Published 1984
64
by Jones, Charles A.
Published 1983
65
by Johnson, Walter, 1915-
Published 1965
66
by Von Glahn, Gerhard, 1911-
Published 1970
67
by Becker, Cynthia S.
Published 2008
68
by Hodgetts, J. E.
Published 1964
69
by Enders, Walter, 1948-
Published 2006
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70
by Shepsle, Kenneth A.
Published 2010
71
by Shemesh, Ruth.
Published 2000
72
Published 1958
73
by Pettman, Ralph
Published 1975
74
by Sakharov, Andrei, 1921-1989
Published 1968
75
by Barker, Ernest, 1874-
Published 1956
76
by Waldheim, Kurt
Published 1980
77
by Pathmanathan, Murugesu.
Published 1985
78
Published 1993
79
by Regala, Roberto
Published 1969
80
Published 1993