Cita APA (7th ed.)
ebrary, Inc, Halpern, S. H., & Douglas, M. J. (2005). Evidence-based obstetric anesthesia. BMJ Books : Blackwell Pub..
Cita Chicago (17th ed.)
ebrary, Inc, Stephen H. Halpern, i M. Joanne Douglas. Evidence-based Obstetric Anesthesia. Malden, Mass.: BMJ Books : Blackwell Pub., 2005.
Cita MLA (9th ed.)
ebrary, Inc, et al. Evidence-based Obstetric Anesthesia. BMJ Books : Blackwell Pub., 2005.
Atenció: Aquestes cites poden no estar 100% correctes.