Columbia subject headings:
Harvard subject headings:
Intellectuals--Korea--History.
Korea--Civilization--Confucian influences.
Korea--Intellectual life--1392-1910.
Korea--Social life and customs--1392-1910.
Printing--Korea--History
Princeton subject headings:
Korea--Civilization--1392-1910.
Wood types (Printing)--Korea.
Wooden tablets--Korea.