APA-referens (7:e uppl.)

Espiritu, E. B. (2003). Why a clear population policy is important. IN Continuum [column]. Manila Times.

Chicago-referens (17:e uppl.)

Espiritu, Edgardo B. "Why a Clear Population Policy Is Important. IN Continuum [column]." Manila Times 2003.

MLA-referens (9:e uppl.)

Espiritu, Edgardo B. "Why a Clear Population Policy Is Important. IN Continuum [column]." Manila Times, 2003.