APA-viite (7. p.)
Sage, E. M. (2009). A dubious science: Political economy and the social question in 19th-century France. Peter Lang.
Chicago-viite (17. p.)
Sage, Elizabeth M. A Dubious Science: Political Economy and the Social Question in 19th-century France. New York: Peter Lang, 2009.
MLA-viite (9. p.)
Sage, Elizabeth M. A Dubious Science: Political Economy and the Social Question in 19th-century France. Peter Lang, 2009.
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