00777cam a22002411  45000010006000000050017000060080041000230350003000640350012000670100014000790400018000930430012001110500024001230820013001471000027001602450101001872600046002883000047003345040030003816500039004116510040004506500045004903109720230410115541.0800122s1964    mduab    b    000 0 eng      a1696054  a64025069   aDLCcDLCdDLC  an-us---14aHE 2751bF655r 196400a385.09731 aFogel, Robert William.10aRailroads and American economic growth:bessays in econometric history /cRobert  William Fogel.  aBaltimore :bJohns Hopkins Press,c[1964]  axv, 296 p.billus., maps (1 fold.)c24 cm.  aBibliography: p. 263-285. 0aRailroadszUnited StatesxHistory. 0aUnited StatesxEconomic conditions. 4aFerrocarrilesxHistoriazEstados Unidos.