Cagahastian, D. C. (2003). Men outnumber women in use of illegal drugs among drivers. Manila Bulletin.
Chicago-referens (17:e uppl.)Cagahastian, Diego C. "Men Outnumber Women in Use of Illegal Drugs Among Drivers." Manila Bulletin 2003.
MLA-referens (9:e uppl.)Cagahastian, Diego C. "Men Outnumber Women in Use of Illegal Drugs Among Drivers." Manila Bulletin, 2003.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.