Columbia subject headings:
Harvard subject headings:
Censorship--Japan--History.
Japan--History--Allied occupation, 1945-1952.
Japanese language--Study and teaching--Japan--History--20th century.
Japanese language--Textbooks--History--20th century.
Princeton subject headings:
Japanese language--Study and teaching--Japan--History--20th century.
Japanese language--Textbooks--History--20th century.