@book{28479,
	author = {Varney, Helen. and Varney, Helen.},
	title = {Varney's midwifery /},
	publisher = {Jones and Bartlett Publishers,},
	year = {c1997.},
	address = {Sudbury, Mass. :},
	edition = {3rd ed.},
	note = {Rev. ed. of: Nurse-midwifery / Helen Varney. 2nd ed. Boston : Blackwell Scientific, c1987.}
}