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Grondslagen en techniek van de martktanalyse
Verdoorn, P. J. - 1950
Persistent link: https://www.econbiz.de/10001396715
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Der Nutzen der Marktprüfung
Verdoorn, P. J. - In: ESOMAR/WAPOR - Kongressberichte. 1955
Persistent link: https://www.econbiz.de/10003699705
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Econometric Analysis for Public Policy
Fox, Karl A. - 1958
Persistent link: https://www.econbiz.de/10001458989
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Research methods in economics & business
Ferber, Robert; Verdoorn, Petrus J. - 1962
Persistent link: https://www.econbiz.de/10014385883
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De eigen markt der onderneming
Verdoorn, P. J. (contributor) - 1952
Persistent link: https://www.econbiz.de/10003699787