ebrary, Inc, Feldstein, M. S., & Siebert, H. (2002). Social security pension reform in Europe. University of Chicago Press.
Chicago Style (17th ed.) Citationebrary, Inc, Martin S. Feldstein, and Horst Siebert. Social Security Pension Reform in Europe. Chicago: University of Chicago Press, 2002.
MLA引文ebrary, Inc, et al. Social Security Pension Reform in Europe. University of Chicago Press, 2002.
警告:這些引文格式不一定是100%准確.