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1
Reengineering the survey of income and program participation
Cyhoeddwyd 2009An electronic book accessible through the World Wide Web; click to view
Electronig eLyfr -
2
The 2000 Census interim assessment /
Cyhoeddwyd 2001An electronic book accessible through the World Wide Web; click to view
Electronig eLyfr -
3
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4
The Future of the Survey of Income and Program Participation
Cyhoeddwyd 1993An electronic book accessible through the World Wide Web; click to view
Electronig eLyfr