Columbia subject headings:
Athletics--Canada--Societies, etc.--Directories.
Athletics--United States--Societies, etc.--Directories.
Sporting goods industry--Canada--Directories.
Sporting goods industry--United States--Directories.
Sports administration--Canada--Directories.
Sports administration--United States--Directories.
Sports--Canada--Directories.
Sports--United States--Directories.
Harvard subject headings:
Princeton subject headings:
Directories.
Sporting goods industry--United States--Directories.
Sports--United States--Directories.