De Vries, R. G. (2001). Birth by design: Pregnancy, maternity care, and midwifery in North America and Europe. Routledge.
Dyfyniad Arddull ChicagoDe Vries, Raymond G. Birth by Design: Pregnancy, Maternity Care, and Midwifery in North America and Europe. New York: Routledge, 2001.
Dyfyniad MLADe Vries, Raymond G. Birth by Design: Pregnancy, Maternity Care, and Midwifery in North America and Europe. Routledge, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.