Columbia subject headings:
Book industries and trade--Great Britain--Bibliography.
Book industries and trade--United States--Bibliography.
Printers--Great Britain--Directories.
Printers--United States--Directories.
Printing--Great Britain--Bibliography.
Printing--United States--Bibliography.
Harvard subject headings:
Book industries and trade--Great Britain--Bibliography.
Book industries and trade--United States--Bibliography.
Printers--Great Britain--Directories.
Printers--United States--Directories.
Printing--Great Britain--Bibliography.
Printing--United States--Bibliography.
Princeton subject headings:
Book industries and trade--Great Britain--Bibliography.
Book industries and trade--United States--Bibliography.
Printers--Great Britain--Directories.
Printers--United States--Directories.
Printing--Great Britain--Bibliography.
Printing--United States--Bibliography.