TY - BOOK AU - Lavis,F. TI - Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910 The Bergen Hill Tunnels. Paper No. 1154 AV - TA PY - 2007/// PB - Project Gutenberg KW - Civil engineering -- Periodicals KW - Railroad tunnels -- Design and construction N1 - Project Gutenberg; Freely available; Electronic text UR - http://www.gutenberg.org/etext/21083 UR - http://www.gutenberg.org/license ER -