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