Cita APA (7th ed.)

Steen, M., & Roberts, T. (2011). The handbook of midwifery research. Wiley-Blackwell.

Cita Chicago (17th ed.)

Steen, Mary, i Taniya Roberts. The Handbook of Midwifery Research. Chichester, West Sussex, U.K. ; Ames, Iowa: Wiley-Blackwell, 2011.

Cita MLA (9th ed.)

Steen, Mary, i Taniya Roberts. The Handbook of Midwifery Research. Wiley-Blackwell, 2011.