Lua APA (7ú heag.)
ebrary, Inc, & Norwitz, E. R. (2007). Oxford American handbook of obstetrics and gynecology. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, agus Errol R. Norwitz. Oxford American Handbook of Obstetrics and Gynecology. Oxford ; New York: Oxford University Press, 2007.
Lua MLA (9ú heag.)
ebrary, Inc, agus Errol R. Norwitz. Oxford American Handbook of Obstetrics and Gynecology. Oxford University Press, 2007.
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