APA (7th ed.) Citation

Philippines (Republic). Office of the President & Presidential Economic Staff. (1969). Provincial profile of Zamboanga del Sur. s.n.

Chicago Style (17th ed.) Citation

Philippines (Republic). Office of the President and Presidential Economic Staff. Provincial Profile of Zamboanga Del Sur. [Manila: s.n, 1969.

MLA (9th ed.) Citation

Philippines (Republic). Office of the President and Presidential Economic Staff. Provincial Profile of Zamboanga Del Sur. s.n, 1969.