Columbia subject headings:
Alaska--Discovery and exploration--Russian--Early works to 1800.
China--Description and travel.
Jesuits--China--Early works to 1800.
Korea--Description and travel.
Papermaking--China--Early works to 1800.
Tibet Autonomous Region (China)--Description and travel--Early works to 1800.
Writing materials and instruments--Early works to 1800.
Harvard subject headings:
Alaska--Discovery and exploration--Russian--Early works to 1800.
China--Description and travel--Early works to 1800.
Jesuits--China--Early works to 1800.
Korea--Description and travel--Early works to 1800.
Papermaking--China--Early works to 1800.
Tibet Autonomous Region (China)--Description and travel--Early works to 1800.
Writing materials and instruments--Early works to 1800.
Princeton subject headings: