Seminar for Student Leaders (2nd : 1970 : Tagaytay City). (1970). Agenda for the 70's: Youth and national progress. [s.n.
Cita Chicago (17th ed.)Seminar for Student Leaders (2nd : 1970 : Tagaytay City). Agenda for the 70's: Youth and National Progress. Manila: [s.n, 1970.
Cita MLA (9th ed.)Seminar for Student Leaders (2nd : 1970 : Tagaytay City). Agenda for the 70's: Youth and National Progress. [s.n, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.