54067. Economics of transportation / by D. Philip Locklin. - 6th ed. - Homewood, Illinois : Richard D. Irwin, Inc., 1966. 882 p.: 24 cm.. - (Met reg.). - First publ. 1947 PK : NS K 470

54067. Economics of transportation / by D. Philip Locklin. - 6th ed. - Homewood, Illinois : Richard D. Irwin, Inc., 1966. 882 p.: 24 cm.. - (Met reg.). - First publ. 1947 PK : NS K 470