1
Published 1988
2
Published 2007
3
Published 1967
4
Published 1979
5
Published 1947
6
Published 2002
7
Published 1989
8
9
Published 2002
10
Published 1947
11
Published 1993
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12
Published 1990
13
Published 2009
14
Published 1994
15
Published 2009
16
Published 1949
17
Published 2009
18
Published 2002
19
Published 1978
20
Published 2005