(1997). Population act of 1997: It is important for the Filipinos? Manila Bulletin.
Chicago Style aipamena"Population Act of 1997: It Is Important for the Filipinos?" Manila Bulletin 1997.
MLA aipamena"Population Act of 1997: It Is Important for the Filipinos?" Manila Bulletin, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.