Cabrera, C. (1999). What should a UP president be?. IN Letters [column]. Philippine Daily Inquirer.
Chicago-referens (17:e uppl.)Cabrera, Clodualdo. "What Should a UP President Be?. IN Letters [column]." Philippine Daily Inquirer 1999.
MLA-referens (9:e uppl.)Cabrera, Clodualdo. "What Should a UP President Be?. IN Letters [column]." Philippine Daily Inquirer, 1999.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.