Cita APA (7a ed.)
EUA. United States Congress : (97° Congress : 1981-1982). (1981). Congressional Pictorial Directory: January 1981. Government Printing Office.
Cita estilo Chicago (17a ed.)
EUA. United States Congress : (97° Congress : 1981-1982). Congressional Pictorial Directory: January 1981. Washington, EUA: Government Printing Office, 1981.
Cita MLA (9a ed.)
EUA. United States Congress : (97° Congress : 1981-1982). Congressional Pictorial Directory: January 1981. Government Printing Office, 1981.
Precaución: Estas citas no son 100% exactas.