Ocampo, S. C. (2020). Three 50th anniversaries and what each is telling us. IN At ground level [column]. Philippine Star.
Chicago-referens (17:e uppl.)Ocampo, Satur C. "Three 50th Anniversaries and What Each Is Telling Us. IN At Ground Level [column]." Philippine Star 2020.
MLA-referens (9:e uppl.)Ocampo, Satur C. "Three 50th Anniversaries and What Each Is Telling Us. IN At Ground Level [column]." Philippine Star, 2020.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.