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Survey sample and mailing. - 1992. - II, 116 S. : graph. Darst.
Willett, Lois Schertz - 1992
Persistent link: https://www.econbiz.de/10000890726
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Data documentation. - 1992. - II, 143 S.
Willett, Lois Schertz - 1992
Persistent link: https://www.econbiz.de/10000890727
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Data summary. - 1992. - VII, 202 S.
Willett, Lois Schertz - 1992
Persistent link: https://www.econbiz.de/10000890728
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Econometric model. - 1992. - II, 71 S.
Willett, Lois Schertz - 1992
Persistent link: https://www.econbiz.de/10000890729