(2007). Drugstores Association of the Philippines 11th National Convention. IN Editorial [column]. Manila Bulletin.
Chicago-referens (17:e uppl.)"Drugstores Association of the Philippines 11th National Convention. IN Editorial [column]." Manila Bulletin 2007.
MLA-referens (9:e uppl.)"Drugstores Association of the Philippines 11th National Convention. IN Editorial [column]." Manila Bulletin, 2007.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.