@book{19982,
	author = {Speroff, Leon, and Darney, Philip D.  },
	title = {A clinical guide for contraception /},
	publisher = {Wolters Kluwer Health/Lippincott Williams & Wilkins,},
	year = {c2011.},
	address = {Philadelphia :},
	edition = {5th ed., Special ed.}
}