Columbia subject headings:
Harvard subject headings:
Education and state--History--20th century--Bibliography.
Education--History--20th century--Bibliography.
Educational sociology--History--20th century--Bibliography.
Hanna, Jean Shuman.
Hanna, Paul R. (Paul Robert), 1902-1988
Hoover Institution on War, Revolution, and Peace--Archives--Bibliography.
Princeton subject headings:
Education and state--History--20th century--Bibliography.
Education--History--20th century--Bibliography.
Educational sociology--History--20th century--Bibliography.
Hanna, Jean Shuman.
Hanna, Paul R. (Paul Robert), 1902-1988.
Hoover Institution on War, Revolution, and Peace--Archives--Bibliography.