Marcos, F. E. P. (1973). The Four-year development plan of the Philippines.
Chicago-viite (17. p.)Marcos, Ferdinand Edralin Pres. The Four-year Development Plan of the Philippines. Manila, 1973.
MLA-viite (9. p.)Marcos, Ferdinand Edralin Pres. The Four-year Development Plan of the Philippines. 1973.
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