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State sales tax data as a current source of retail sales information
Wagner, Louis C. - In: Business review 30 (1971) 2, pp. 5-14
Persistent link: https://www.econbiz.de/10002989250
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The use of the observational method in marketing research
Wagner, Louis C. - In: Business review 28 (1968) 1, pp. 18-24
Persistent link: https://www.econbiz.de/10002989259
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Methods of providing information to motorists on the interstate system
Wagner, Louis C.; Harder, Virgil E. - In: Traffic quarterly : an independent journal for better … 19 (1965) 4, pp. 504-519
Persistent link: https://www.econbiz.de/10002989111