Velasco, C. R., & Untivero, R. G. (1975). Symbols of the state: Republic of the Philippines. Quezon City, Philippines: Department of Local Government and Community Development.

Chapter 1: The Republic of the Philippines -- The history of the Republic -- The seal of the Republic -- The flag of the Republic -- The national anthem -- The national hero -- The national flower -- The national costume -- Chapter 2: The central government -- Malacanang Palace -- The seal and flag of the President of the Republic -- The seals of the Department of Government -- Chapter 3: The local governments -- Chartered cities -- Region I -- Region III -- Region IV -- Region V -- Region VI -- Region VII -- Region VIII -- Region IX -- Region X -- Region XI -- Provinces: map of the Philippines -- Region I -- Region II -- Region III -- Region IV -- Region V -- Region VI -- Region VII -- Region VIII -- Region IX -- Region X -- Region XI