Philippines (Republic). Wage and Position Classification Office & Kroeger, L. J. (1955). Wage and position classification survey of the national government of the Philippines: A report fulfilling contractual obligations to be met June 30, 1955. [s.n.].
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Philippines (Republic). Wage and Position Classification Office و Louis J. Kroeger. Wage and Position Classification Survey of the National Government of the Philippines: A Report Fulfilling Contractual Obligations to Be Met June 30, 1955. Manila: [s.n.], 1955.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Philippines (Republic). Wage and Position Classification Office و Louis J. Kroeger. Wage and Position Classification Survey of the National Government of the Philippines: A Report Fulfilling Contractual Obligations to Be Met June 30, 1955. [s.n.], 1955.