Columbia subject headings:
Book industries and trade--Great Britain--History--Congresses.
Publishers and publishing--Great Britain--History--Congresses.
Harvard subject headings:
Book industries and trade--Great Britain--History--Congresses.
Publishers and publishing--Great Britain--History--Congresses.
Princeton subject headings:
Book industries and trade--Great Britain--History--Congresses.
Publishers and publishing--Great Britain--History--Congresses.