Ermisch, J. F. (1991). Lone parenthood: An economic anlysis. Cambridge.
Tohutoru Kātū Chicago (17th ed.)Ermisch, John F. Lone Parenthood: An Economic Anlysis. New York: Cambridge, 1991.
Tohutoro MLA (9th ed.)Ermisch, John F. Lone Parenthood: An Economic Anlysis. Cambridge, 1991.
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