Columbia subject headings:
Acquisition of databases--United States.
Acquisitions (Libraries)--United States.
Databases--Law and legislation--United States.
Library surveys--Databases.
License agreements--United States.
Harvard subject headings:
Acquisition of databases--United States.
Acquisitions (Libraries)--United States.
Databases--Law and legislation--United States.
Libraries--Special collections--Databases
License agreements--United States.
Princeton subject headings: