Columbia subject headings:
Printers--Great Britain--Directories.
Printing industry--Great Britain--History.
Harvard subject headings:
Apprentices--England.
Book industries and trade--England.
Book industries and trade--Great Britain--History--18th century--Sources.
Book industries and trade--Great Britain--Registers--Indexes.
Printers--England.
Princeton subject headings:
Books industries and trade--Great Britain--History--Sources.
Publishers and publishing--Great Britain--Registers.