Columbia subject headings:
Germany--Antiquities.
Mesolithic period--Germany--North Rhine-Westphalia.
Mesolithic period--Germany--Rhineland-Palatinate.
North Rhine-Westphalia (Germany)--Antiquities.
Paleolithic period--Germany--North Rhine-Westphalia.
Paleolithic period--Germany--Rhineland-Palatinate.
Rhineland-Palatinate (Germany)--Antiquities.
Harvard subject headings:
Germany--Antiquities.
Mesolithic period--Germany--North Rhine-Westphalia.
Mesolithic period--Germany--Rhineland-Palatinate.
North Rhine-Westphalia (Germany)--Antiquities.
Paleolithic period--Germany--North Rhine-Westphalia.
Paleolithic period--Germany--Rhineland-Palatinate.
Rhineland-Palatinate (Germany)--Antiquities.
Princeton subject headings:
Mesolithic period--Germany--North Rhine-Westphalia.
Mesolithic period--Germany--Rhineland-Palatinate.
North Rhine-Westphalia (Germany)--Antiquities.
Paleolithic period--Germany--North Rhine-Westphalia.
Paleolithic period--Germany--Rhineland-Palatinate.
Rhineland-Palatinate (Germany)--Antiquities.