This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Adolf Ritter von Liebenberg signiert JR. Adolf Ritter von Liebenberg AT agronomist plant breeder Adolf Ritter von Liebenberg Pflanzenbauwissenschaftler archive org page Dr Adolf Ritter von Liebenberg In Das goldene Buch der Land und Forstwirthschaft in OesterreichUngarn Wien unknown signed JR by PDold Adolf von Liebenberg Das