TY - BOOK AU - Brace,James H. TI - Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910: The New York Tunnel Extension of the Pennsylvania Railroad. The Cross-Town Tunnels. Paper No. 1158 AV - TA PY - 2006/// PB - Project Gutenberg KW - Civil engineering -- Periodicals KW - Railroad tunnels -- Design and construction N1 - Public domain in the USA; Electronic text UR - http://www.gutenberg.org/ebooks/19037 ER -