1
Published 2003-
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Electronic Government document Series AER Publication
2
Published 1992
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Government document AER Publication
3
Published 1992
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Electronic Government document AER Publication
4
...Accuracy...
Government document AER Publication Electronic
5
Published 1969
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Government document AER Publication Electronic
6
Published 1968
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Government document AER Publication Electronic
7
Published 1990
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Government document AER Publication
8
Published 1980
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Government document AER Publication
9
Published 1978
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Government document AER Publication
10
Published 1973
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Government document AER Publication
11
Published 1990
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Electronic Government document AER Publication
12
Published 1990
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Government document AER Publication
13
Published 1989
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Government document AER Publication
15
Published 1988
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Government document AER Publication Electronic
16
Published 1975
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Standard
17
Published 1975
...Accuracy...
Standard
19
20
Published 1971
...Accuracy...
Standard