Social Security Bulletin. Social Security Administration.
芝加哥风格引文Social Security Bulletin. Social Security Administration.
MLA引文Social Security Bulletin. Social Security Administration.
警告：这些引文格式不一定是100％准确.
APA引文
Social Security Bulletin. Social Security Administration.
芝加哥风格引文Social Security Bulletin. Social Security Administration.
MLA引文Social Security Bulletin. Social Security Administration.