Columbia subject headings:
Harvard subject headings:
Book collectors--United States--Directories.
Book industries and trade--United States--Directories
Booksellers and bookselling--Directories
Booksellers and bookselling--United States--Periodicals.
Publishers and publishing--Directories
Publishers and publishing--United States--Directories
Princeton subject headings:
Book collectors--United States--Directories.
Book industries and trade--United States--Directories.
Directories.
Publishers and publishing--United States--Directories.