Cita APA

Nelson-Piercy, C., & Girling, J. (2007). Obstetric Medicine: A Problem-Based Approach. Springer-Verlag London Limited.

Citación estilo Chicago

Nelson-Piercy, Catherine., and Joanna Girling. Obstetric Medicine: A Problem-Based Approach. London: Springer-Verlag London Limited, 2007.

Cita MLA

Nelson-Piercy, Catherine., and Joanna Girling. Obstetric Medicine: A Problem-Based Approach. London: Springer-Verlag London Limited, 2007.