@book{2061,
	author = {Sobrero, A.J. and Annual Meeting of the American Association of Planned Parenthood Physicians (9th : 1971 : Missouri).},
	title = {Advances in planned parenthood : proceedings [of the] IXth Annual Meeting, Missouri, 5-6 April 1971.},
	publisher = {excerpta Medica,},
	year = {1972.},
	address = {Amsterdam : }
}