اذا لم تجد ما تبحث عنه يمكنك استخدام كلمات أكثر دقة.
Author: Conant, Levi L. (Levi Leonard), 1857-1916
Title: The Number Concept: Its Origin and Development
Language: English
LoC Class: QA: Science: Mathematics
Subject: Number concept
Release Date: Aug 5, 2005
Copyright Status: Public domain in the USA.
: Project Gutenberg books are always free!