Masa, E. The higher Civil Service in the Philippines.
Lua i Stíl Chicago (17ú heag.)Masa, Edward. The Higher Civil Service in the Philippines. 1976.
Lua MLA (9ú heag.)Masa, Edward. The Higher Civil Service in the Philippines.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.