The demand for transportation: regional and commodity studies in the United States /
Perle, Eugene D.
The demand for transportation: regional and commodity studies in the United States / by Eugene D. Perle. - Chicago : Dept. of Geography, University of Chicago, 1964. - xx, 130 p. : maps. ; 23 cm. - University of Chicago. Dept. of Geography. Research paper no. 95 . - no. 95. Research paper (University of Chicago. Department of Geography) ; .
Bibliography: p. 127-130.
Freight and freightage--Mathematical models.--United States
385 / PED 1964
The demand for transportation: regional and commodity studies in the United States / by Eugene D. Perle. - Chicago : Dept. of Geography, University of Chicago, 1964. - xx, 130 p. : maps. ; 23 cm. - University of Chicago. Dept. of Geography. Research paper no. 95 . - no. 95. Research paper (University of Chicago. Department of Geography) ; .
Bibliography: p. 127-130.
Freight and freightage--Mathematical models.--United States
385 / PED 1964