اذا لم تجد ما تبحث عنه يمكنك استخدام كلمات أكثر دقة.
Author: Humboldt, Alexander von, 1769-1859
Title: Ideen zu einer Physiognomik der Gewächse
Language: German
LoC Class: QK: Science: Botany
Subject: Phytogeography
Subject: Plant ecology
Release Date: Sep 24, 2007
Copyright Status: Public domain in the USA.
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