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Zur Entwicklung der experimentellen Wirtschaftsforschung
Sauermann, Heinz, (1967)
Marginalanalyse und empirische Forschung
Machlup, Fritz, (1971)
Appraising economic theories : studies in the methodology of research programs
De Marchi, Neil, (1991)
Personal income in Maryland counties, 1951-1955
(1957)
The Saginaw River Port survey, ...
O'Donnell, John L., (1957)
East Lansing, Febr. 1958