Columbia subject headings:
Harvard subject headings:
Community colleges--United States--History--20th century.
Education, Higher--United States--History--20th century
Education, Humanistic--United States--History--20th century.
Vocational education--United States--History--20th century.
Princeton subject headings:
Community colleges--United States--History--20th century.
Education, Higher--United States--History--20th century.
Education, Humanistic--United States--History--20th century.
Vocational education--United States--History--20th century.