APA (7th ed.) Citation

Philippines (Republic). (1970). Official directory 1970 (revised as of October 31, 1970) ([New edition].). Office of the President. Public Informartion Office, Malacanang.

Chicago Style (17th ed.) Citation

Philippines (Republic). Official Directory 1970 (revised as of October 31, 1970). [New edition]. Manila: Office of the President. Public Informartion Office, Malacanang, 1970.

MLA (9th ed.) Citation

Philippines (Republic). Official Directory 1970 (revised as of October 31, 1970). [New edition]. Office of the President. Public Informartion Office, Malacanang, 1970.