1
Published 2001
2
Published 1992
3
Published 1996
4
Published 1994
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Published 1988
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Published 1983
7
Published 2003
8
9
Published 2003
10
Published 1994
11
Published 1992
12
Published 1992
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Published 1995
14
Published 1990
15
16
Published 1987
17
by Sisk, Timothy D, 1960-
Published 1992
18
Published 1988
19
Published 2002
20
Published 1990