APA引文

(1997). Longer lifespans and age-related problems. Manila Bulletin.

芝加哥风格引文

"Longer Lifespans and Age-related Problems." Manila Bulletin 1997.

MLA引文

"Longer Lifespans and Age-related Problems." Manila Bulletin, 1997.

警告：这些引文格式不一定是100％准确.