Economic impact of highway improvement conference proceedings, March 18-19, 1957.

Economic impact of highway improvement conference proceedings, March 18-19, 1957.

Xehetasun bibliografikoak
Erakunde egilea: National Research Council (U.S.). Highway Research Board
Formatua: Liburua
Hizkuntza:English
Argitaratua: Washington, D.C. Highway Research Board 1957.
Gaiak:
Roads > United States.