2
CQ's Political Staff, 345.42-S779p-R
| Congressional Quarterly's |
1994
345.42-S779p-R,
3
Longman Group, 591.9059-L856w-R
| Longman |
1993
591.9059-L856w-R,
1
2
3
Australian Council for Educational Research
[, ]
4
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