Seminar for Student Leaders Tagaytay City. (1969). Youth's positive role in national development. Ateneo de Manila University.
Lua i Stíl Chicago (17ú heag.)Seminar for Student Leaders Tagaytay City. Youth's Positive Role in National Development. [Quezon City: Ateneo de Manila University, 1969.
Lua MLA (9ú heag.)Seminar for Student Leaders Tagaytay City. Youth's Positive Role in National Development. Ateneo de Manila University, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.