BURNS, E. M. (1949). The American social security system. Houghton Mifflin Company.
芝加哥风格引文BURNS, Eveline M. The American Social Security System. Boston: Houghton Mifflin Company, 1949.
MLA引文BURNS, Eveline M. The American Social Security System. Houghton Mifflin Company, 1949.
警告：这些引文格式不一定是100％准确.