1
Published 1988
2
Published 2007
3
Published 1967
4
Published 1947
5
Published 1989
6
Published 1990
7
Published 1978
8
Published 2005
9
Published 2001
10
Published 1972
11
Published 2012
12
Published 2000
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13
Published 1923
14
Published 1945
15
Published 1974
16
Published 1978
17
Published 2010
18
Published 2011
19
Published 1959
20