Columbia subject headings:
Irish Republican Army--History--20th century.
Labor unions--United States--Officials and employees--Biography.
Quill, Mike.
Transport Workers Union of America--History--20th century.
Harvard subject headings:
Irish Republican Army--History--20th century.
Irish Republican Army--History.
Labor unions--United States--Officials and employees--Biography
Quill, Mike.
Transport Workers Union of America--History--20th century.
Princeton subject headings:
Irish Republican Army--History--20th century.
Labor unions--United States--Officials and employees--Biography.
Quill, Mike.
Transport Workers Union of America--History--20th century.