Columbia subject headings:
Harvard subject headings:
Professional sports--Canada--Directories.
Professional sports--United States--Directories.
Sports franchises--Canada--Directories.
Sports franchises--United States--Directories.
Princeton subject headings:
Directories.
Professional sports--Canada--Directories.
Professional sports--United States--Directories.
Sports franchises--Canada--Directories.
Sports franchises--United States--Directories.