Columbia subject headings:
Harvard subject headings:
Baku (Azerbaijan)--Description and travel.
Tʻbilisi (Georgia)--Description and travel.
Wackwitz, Stephan--Travel.
Yerevan (Armenia)--Description and travel.
Princeton subject headings:
Caucasus, South--Description and travel.
Wackwitz, Stephan--Travel--Caucasus, South.