Columbia subject headings:
Leather industry and trade--Bibliography.
Leather industry and trade--Directories.
Leather industry and trade--Information services.
Harvard subject headings:
Leather industry and trade--Bibliography.
Leather industry and trade--Directories.
Leather industry and trade--Information services.
Princeton subject headings:
Leather industry and trade--Bibliography.
Leather industry and trade--Directories.
Leather industry and trade--Information services.