Columbia subject headings:
Harvard subject headings:
Libraries--Special collections--Government publications--Congresses.
Libraries--Special collections--Microforms--Congresses.
Microforms--Congresses.
Periodicals--Congresses.
Public services (Libraries)--Congresses.
Serials control systems--Congresses.
Princeton subject headings:
Libraries--Special collections--Government publications--Congresses.
Libraries--Special collections--Microforms--Congresses.
Microforms--Congresses.
Periodicals--Congresses.
Public services (Libraries)--Congresses.
Serials control systems--Congresses.