na YOGYA-02090000073867 20090227093744.0 ind 010-020900000073867 380.5 380.5 Bec S L BECKMANN, Martin Studies in the economics of transportation Martin Beckmann, C.B.Mcguire, Christopher B Winsten London The Cowles Commission for Research in economics 1956 xix,232 hlm ilus 23 cm Bibliografi:hlm.219-225 Indeks Pengangkutan,Industri Mcguire, C.B Winsten, Christopher B BPAD 1