De Vries, R. G. (2001). Birth by design: Pregnancy, maternity care, and midwifery in North America and Europe. Routledge.
Chicago-referens (17:e uppl.)De Vries, Raymond G. Birth by Design: Pregnancy, Maternity Care, and Midwifery in North America and Europe. New York: Routledge, 2001.
MLA-referens (8:e uppl.)De Vries, Raymond G. Birth by Design: Pregnancy, Maternity Care, and Midwifery in North America and Europe. Routledge, 2001.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.