Elpedes, A. F. (2011). A countdown for safety. HealthToday Philippines.
芝加哥风格引文Elpedes, Abel Francisco. "A Countdown for Safety." HealthToday Philippines 2011.
MLA引文Elpedes, Abel Francisco. "A Countdown for Safety." HealthToday Philippines, 2011.
警告：这些引文格式不一定是100％准确.