اذا لم تجد ما تبحث عنه يمكنك استخدام كلمات أكثر دقة.
Author: Crosby, William O. (William Otis), 1850-1925
Title: Common Minerals and Rocks
Language: English
LoC Class: QE: Science: Geology
Subject: Geology -- Study and teaching
Release Date: Jun 24, 2015
Copyright Status: Public domain in the USA.
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