Lapuz, D. S., & Leogardo, F. T. (1973). The development of the Philippine government ([Rev. ed.].). Philippine Book.
Lua i Stíl Chicago (17ú heag.)Lapuz, Dominador S., agus Felicitas Tensuan Leogardo. The Development of the Philippine Government. [Rev. ed.]. Manila: Philippine Book, 1973.
Lua MLA (9ú heag.)Lapuz, Dominador S., agus Felicitas Tensuan Leogardo. The Development of the Philippine Government. [Rev. ed.]. Philippine Book, 1973.
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