1
2
by Klein, Michael W.
Published 2001
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5
6
7
8
9
10
11
12
13
by Sloman, John
Published 1997
14
by Begg, David
Published 1997
15
by Sloman, John
Published 1999
16
by Case, Karl E.
Published 1999
17
by Heathfield, David
Published 1992
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20
by Parkin, Michael
Published 2016