@book{3226,
	author = {Skouby, Sven O.(editor)},
	title = {Clinical perspectives on a new gestodene oral contraceptive containing 20 [mu]g of ethinylestradiol :the proceedings of a symposium at the 4th Congress of the European Society of Contraception, Barcelona, Spain, June 1996 },
	publisher = {Parthenon,},
	year = {1997.},
	address = {New York :},
	url = {https://books.google.com.pk/books?id=IYj54F5zvM4C&printsec=frontcover&dq=1850707863&hl=en&sa=X&redir_esc=y#v=onepage&q=1850707863&f=false}
}