اذا لم تجد ما تبحث عنه يمكنك استخدام كلمات أكثر دقة.
Author: Weismann, August, 1834-1914
Translator: McCormack, Thomas J. (Thomas Joseph), 1865-1932
Title: On Germinal Selection as a Source of Definite Variation
Language: English
LoC Class: QH: Science: Natural history
Subject: Variation (Biology)
Release Date: Oct 15, 2010
Copyright Status: Public domain in the USA.
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