Marcos, F. E. (1967). Extemporaneous speech at the Annual Seminar of the Philippine Historical Association, FEU, 29 November 1967.
Chicago-viite (17. p.)Marcos, Ferdinand E. Extemporaneous Speech at the Annual Seminar of the Philippine Historical Association, FEU, 29 November 1967. 1967.
MLA-viite (9. p.)Marcos, Ferdinand E. Extemporaneous Speech at the Annual Seminar of the Philippine Historical Association, FEU, 29 November 1967. 1967.
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