Villegas, B. M. (2002). Why contributions to SSS must increase. IN Business and society [column]. Manila Bulletin.
Chicago Style (17. basım) AtıfVillegas, Bernardo M. "Why Contributions to SSS Must Increase. IN Business and Society [column]." Manila Bulletin 2002.
MLA (9th ed.) AtıfVillegas, Bernardo M. "Why Contributions to SSS Must Increase. IN Business and Society [column]." Manila Bulletin, 2002.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..