@book{224213,
	author = {Tharpe, Nell and Farley, Cindy L.},
	title = {Clinical practice guidelines for midwifery & women's health},
	publisher = {Jones and Bartlett Publishers},
	year = {c2009.},
	address = {Sudbury, Mass.},
	edition = {3rd ed.},
	url = {http://www.loc.gov/catdir/toc/ecip088/2008000611.html}
}