De Lee, J. B. (1908). Obstetrics for nurses (3d ed., thoroughly rev. and enl.). W.B. Saunders company.
Lua i Stíl Chicago (17ú heag.)De Lee, Joseph B. Obstetrics for Nurses. 3d ed., thoroughly rev. and enl. Philadelphia, London: W.B. Saunders company, 1908.
Lua MLA (8ú heag.)De Lee, Joseph B. Obstetrics for Nurses. 3d ed., thoroughly rev. and enl. W.B. Saunders company, 1908.
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