John J. Havick
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John Havick,
John J. Havick,
2000
.
John J. Havick,
2008
.
Gary S. May,
Rebecca L. Morley,
John Havick,
1998
.
John J. Havick,
1997
.
John J. Havick,
David A. Ray,
1981
.
John J. Havick,
1991
.
John J. Havick,
1975,
The Journal of Politics.