اذا لم تجد ما تبحث عنه يمكنك استخدام كلمات أكثر دقة.
Author: Prelini, Charles
LoC No.: 12015448
Title: Tunneling: A Practical Treatise.
Language: English
LoC Class: TF: Technology: Railroad engineering and operation
Subject: Tunneling
Release Date: Aug 3, 2019
Copyright Status: Public domain in the USA.
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