Citazione APA

(1972). Official Congressional Directory: [92nd] Congress (second session.). US Government Printing Office.

Stile di citazione Chicago

Official Congressional Directory: [92nd] Congress. second session. US Government Printing Office, 1972.

Citazione MLA

Official Congressional Directory: [92nd] Congress. second session. US Government Printing Office, 1972.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.