Marcos, F. E. (1967). Extemporaneous speech at the Annual Seminar of the Philippine Historical Association, FEU, 29 November 1967.
Lua i Stíl Chicago (17ú heag.)Marcos, Ferdinand E. Extemporaneous Speech at the Annual Seminar of the Philippine Historical Association, FEU, 29 November 1967. 1967.
Lua MLA (9ú heag.)Marcos, Ferdinand E. Extemporaneous Speech at the Annual Seminar of the Philippine Historical Association, FEU, 29 November 1967. 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.