Ramon Magsaysay Award Foundation. (1973). Ramon Magsaysay Award: 1973 presentation ceremonies. Ramon Magsaysay Award Foundation.
Chicago-referens (17:e uppl.)Ramon Magsaysay Award Foundation. Ramon Magsaysay Award: 1973 Presentation Ceremonies. Manila: Ramon Magsaysay Award Foundation, 1973.
MLA-referens (9:e uppl.)Ramon Magsaysay Award Foundation. Ramon Magsaysay Award: 1973 Presentation Ceremonies. Ramon Magsaysay Award Foundation, 1973.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.