Walsh, Denis. Evidence and skills for normal labour and birth : a guide for midwives / Denis Walsh. - 2nd ed. - Abingdon, Oxon : Routledge, 2012. - xviii, 206 p. : ill. ; 25 cm. ISBN: 9780415577311 RM374.23 Subjects--Topical Terms: Natural Childbirth--nursing.Midwifery.Evidence-Based Medicine.