Philippines (Republic) Civil Service Commission. (1965). Civil service opinions and rulings. v. 1-. Personnel Officers Association of the Philippines.
Chicago Style (17. basım) AtıfPhilippines (Republic) Civil Service Commission. Civil Service Opinions and Rulings. V. 1-. Manila: Personnel Officers Association of the Philippines, 1965.
MLA (9th ed.) AtıfPhilippines (Republic) Civil Service Commission. Civil Service Opinions and Rulings. V. 1-. Personnel Officers Association of the Philippines, 1965.
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