Columbia subject headings:
Harvard subject headings:
Amur River Valley (China and Russia)--Economic conditions.
Baikal Lake Region (Russia)--Economic conditions.
Baĭkalo-Amurskai͡a magistralʹ.
Siberia (Russia)--Economic conditions.
Princeton subject headings:
Amur River Valley (China and Russia)--Economic conditions.
Baikal Lake region (Russia)--Economic conditions.
Baĭkalo-Amurskai︠a︡ magistralʹ.
Siberia (Russia)--Economic conditions.