Hidalgo, A. (1981). Philippine chartography and the Jesuits. Philippine Studies.
Lua i Stíl Chicago (17ú heag.)Hidalgo, Angel. "Philippine Chartography and the Jesuits." Philippine Studies 1981.
Lua MLA (9ú heag.)Hidalgo, Angel. "Philippine Chartography and the Jesuits." Philippine Studies, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.