Macapagal, D. P. (1964). Piety and patriotism. Research and Special Projects, Malacanang Press Office.
Lua i Stíl Chicago (17ú heag.)Macapagal, Diosdado P. Piety and Patriotism. [Manila]: Research and Special Projects, Malacanang Press Office, 1964.
Lua MLA (9ú heag.)Macapagal, Diosdado P. Piety and Patriotism. Research and Special Projects, Malacanang Press Office, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.