Citazione Stile APA (7a Edizione)

Marcos, F. E. (1968). Extemporaneous speech at the Postmaster's Conference, Pasay Post Office, June 13, 1968.

Citazione stile Chigago Style (17a edizione)

Marcos, Ferdinand E. Extemporaneous Speech at the Postmaster's Conference, Pasay Post Office, June 13, 1968. [place of publication not identified], 1968.

Citatione MLA (9a ed.)

Marcos, Ferdinand E. Extemporaneous Speech at the Postmaster's Conference, Pasay Post Office, June 13, 1968. 1968.