اذا لم تجد ما تبحث عنه يمكنك استخدام كلمات أكثر دقة.
Author: Low, David Allan, 1857-1937
Title: An Introduction to Machine Drawing and Design
Language: English
LoC Class: TJ: Technology: Mechanical engineering and machinery
Subject: Machinery -- Drawings
Subject: Machine design
Release Date: Mar 4, 2012
Copyright Status: Public domain in the USA.
: Project Gutenberg books are always free!