00653nam a2200193 4500 1/13422 980914s1972 enkdf i 000 0eng d 13880 DLC GR-PeUP 380.5 LO Locklin, Philip D. Economics of transportation/ D. Philip Locklin. 7th ed. Homewood, Ill: Richard D. Irwin, 1972. xi, 913 σ.: πιν., διαγρ. ; 22 εκ. Περιέχει ευρετήριο. Transportation United States. Railroads United States. INST UNIPILB MAIN 20040709 380.5 LO 00107550 00107550 LOAN 0 1