@book{4418,
	author = { Dewhurst, John},
	title = {    Dewhurst's textbook of obstetrics and gynaecology for postgraduates},
	publisher = {Blackwell Science ,},
	year = {1995 .},
	address = {London :},
	edition = {5th ed.},
	url = {https://books.google.com.pk/books?id=rn9jPwAACAAJ&dq=0632030992&hl=en&sa=X&redir_esc=y}
}