00675cam a22001813a 450000100060000000300060000600500170001200800410002904000150007004200070008510000210009224502300011326000290034350600300037251600200040283000290042285600420045142149PGUSA20140828083942.0130221s2013||||xxu|||||s|||||000 | eng d  aPGUSAbeng  adc1 aHewett, B. H. M.10aTransactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910 :bThe New York Tunnel Extension of the Pennsylvania Railroad. The North River Tunnels. Paper No. 1155h[electronic resource] /cB. H. M. Hewett  bProject Gutenberg,c2013  aPublic domain in the USA.  aElectronic text 0aProject Gutenbergv4214940uhttp://www.gutenberg.org/ebooks/42149