اذا لم تجد ما تبحث عنه يمكنك استخدام كلمات أكثر دقة.
Author: Baker, Ray Stannard, 1870-1946
Title: Boys' Second Book of Inventions
Language: English
LoC Class: T: Technology
Subject: Technology -- Juvenile literature
Subject: Inventions
Release Date: Nov 15, 2013
Copyright Status: Public domain in the USA.
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