اذا لم تجد ما تبحث عنه يمكنك استخدام كلمات أكثر دقة.
Author: Tower, G. B. N. (George Bates Nichols), 1834-1889
Title: Instructions on Modern American Bridge Building
Language: English
LoC Class: TG: Technology: Bridge engineering
Subject: Bridges
Release Date: Feb 2, 2005
Copyright Status: Public domain in the USA.
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