Cita APA (7th ed.)

ebrary, Inc, Byrom, S., Edwards, G., & Bick, D. (2009). Essential midwifery practice. Wiley-Blackwell.

Cita Chicago (17th ed.)

ebrary, Inc, Sheena Byrom, Grace Edwards, i Debra Bick. Essential Midwifery Practice. Chichester ; Ames, Iowa: Wiley-Blackwell, 2009.

Cita MLA (9th ed.)

ebrary, Inc, et al. Essential Midwifery Practice. Wiley-Blackwell, 2009.