TY  - BOOK
AU  - Brown,W.L.
AU  - Hewett,B.H.M.
TI  - Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910 The New York Tunnel Extension of the Pennsylvania Railroad. The North River Tunnels. Paper No. 1155
PY  - 2013///
PB  - Project Gutenberg
N1  - Project Gutenberg; Freely available; Electronic text
UR  - http://www.gutenberg.org/etext/42149
UR  - http://www.gutenberg.org/license
ER  -