Philippines (Republic). Civil Service Commission. (1959). [Civil service opinions and rulings]. [s.n.
Chicago Style (17. basım) AtıfPhilippines (Republic). Civil Service Commission. [Civil Service Opinions and Rulings]. Manila: [s.n, 1959.
MLA (9th ed.) AtıfPhilippines (Republic). Civil Service Commission. [Civil Service Opinions and Rulings]. [s.n, 1959.
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