Columbia subject headings:
Directories.
Handbooks and manuals.
Law--United States--Directories.
Lawyers--United States--Handbooks, manuals, etc.
Harvard subject headings:
Directories.
Handbooks and manuals.
Law--United States--Directories.
Lawyers--United States--Handbooks, manuals, etc.
Princeton subject headings:
Law--United States--Directories.
Lawyers--United States--Handbooks, manuals, etc.