Dela Costa, H. (1992). Readings in Philippine history: Selected historical texts presented with a commentary. Bookmark.
Lua i Stíl Chicago (17ú heag.)Dela Costa, Horacio. Readings in Philippine History: Selected Historical Texts Presented with a Commentary. Manila: Bookmark, 1992.
Lua MLA (9ú heag.)Dela Costa, Horacio. Readings in Philippine History: Selected Historical Texts Presented with a Commentary. Bookmark, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.