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ספרים בחינם

Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910 The New York Tunnel Extension of the Pennsylvania Railroad, The North River Division. Paper No. 1151

Charles M. (Charles Mattathias) Jacobs · 2006

ספרייה ציבורית, Project Gutenberg. בלי הרשמה.

Civil engineering -- PeriodicalsRailroad tunnels -- Design and construction