Columbia subject headings:
Harvard subject headings:
Astrakhanskai︠a︡ oblastʹ (Russia)--Economic conditions.
Astrakhanskai︠a︡ oblastʹ (Russia)--Statistics.
Princeton subject headings:
Astrakhanskai︠a︡ oblastʹ (Russia)--Economic conditions.
Astrakhanskai︠a︡ oblastʹ (Russia)--Statistics.
Statistics.