Columbia subject headings:
Acquisitions (Libraries)--Automation--Standards--United States.
Book industries and trade--Automation--Standards--United States.
Books--Purchasing--Data processing--Standards--United States.
Booksellers and bookselling--Data processing--Standards--United States.
Publishers and publishing--Data processing--Standards--United States.
Harvard subject headings:
Acquisitions (Libraries)--Automation--Standards--United States.
Book industries and trade--Automation--Standards--United States.
Books--Purchasing--Automation--Standards--United States.
Books--Purchasing--Data processing--Standards--United States.
Booksellers and bookselling--Data processing--Standards--United States.
Publishers and publishing--Data processing--Standards--United States.
Princeton subject headings: