APA (7th ed.) Citation

Paul VI, P. (1964). Closing address: Third session. [publisher not identified].

Chicago Style (17th ed.) Citation

Paul VI, Pope. Closing Address: Third Session. [Place of publication not identified]: [publisher not identified], 1964.

MLA (8th ed.) Citation

Paul VI, Pope. Closing Address: Third Session. [publisher not identified], 1964.