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richard h spady
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Cilt sonuçları
Econometric estimation of cost functions in the transportation industries
Richard H. Spady · Center for Transportation Studies, Massachusetts Institute of Technology
98 sayfa · 1976
Transportation / Freight and freightage / Mathematical models
Econometric estimation of cost functions for the regulated transportation industries
Richard H. Spady · Garland Pub.
222 sayfa · 1979
Cost of operation / Costs / Industrial Costs / Industrial policy / Railroads