Sison, P. S. (1966). Personnel management: Principles and practices (Rev. and enl, ed.). Personnel Management Association of the Philippines.
Lua i Stíl Chicago (17ú heag.)Sison, Perfecto S. Personnel Management: Principles and Practices. Rev. and enl, ed. Manila: Personnel Management Association of the Philippines, 1966.
Lua MLA (9ú heag.)Sison, Perfecto S. Personnel Management: Principles and Practices. Rev. and enl, ed. Personnel Management Association of the Philippines, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.