Marcos, F. E. (1973). President Ferdinand Marcos' speech during the Seminar Conference of District and City Engineers [sound recording].
Chicago-viite (17. p.)Marcos, Ferdinand E. President Ferdinand Marcos' Speech During the Seminar Conference of District and City Engineers [sound Recording]. 1973.
MLA-viite (9. p.)Marcos, Ferdinand E. President Ferdinand Marcos' Speech During the Seminar Conference of District and City Engineers [sound Recording]. 1973.
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