Columbia subject headings:
Books and reading.
Booksellers and bookselling--United States.
Libraries--United States.
Publishers and publishing--United States.
Harvard subject headings:
Books and reading
Booksellers and bookselling--United States
Libraries--United States
Publishers and publishing--United States.
Princeton subject headings:
Books and reading.
Booksellers and bookselling--United States.
Libraries--United States.
Publishers and publishing--United States.