TY  - BOOK
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  - Public domain in the USA; Electronic text
UR  - http://www.gutenberg.org/ebooks/42149
ER  -