Columbia subject headings:
Basic training (Military education)--United States--History--20th century.
United States. Marine Corps--History--20th century.
Harvard subject headings:
Basic training (Military education)--United States--History--20th century.
United States. Marine Corps--History--20th century.
Princeton subject headings:
Military education--United States--Basic training--History--20th century.
United States. Marine Corps--History--20th century.