00473cam a22001331  4500082001900000110003300019245009700052260002800149300003200177500004800209526003700257650003700294650000800331  a388.11bNATcD2 aNational Academy of Sciences10aHighways and economic development : Presented at the 38th annual meeting, January 5-9, 1959.  aWashington, D.C:c1959.  a88 p.billus. maps.c25 cm.  aNational Research Council. Publication 687.  a0b0c0d388_110000000000000_NAT 0aExpress highwayszUnited States. 0aMCE