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Economics of transporation
Locklin, David Philip, (1966)
The role of public policy toward inland surface transportation in Egypt
Abdelwahed, Farouk H., (1973)
Economics of transportation
Locklin, Philip, (1972)
Experience form forecasting in Europe
Björkman, Bo, (1974)
Den ekonomiska krisen inom luftfarten
Björkman, Bo, (1963)
I vilken utsträckning bör man investera i vägar?
Björkman, Bo, (1966)