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