Ermisch, J. F. (1991). Lone parenthood: An economic anlysis. Cambridge.
芝加哥风格引文Ermisch, John F. Lone Parenthood: An Economic Anlysis. New York: Cambridge, 1991.
MLA引文Ermisch, John F. Lone Parenthood: An Economic Anlysis. Cambridge, 1991.
警告：这些引文格式不一定是100％准确.