@book{2074,
	author = {Baker Philip and Baker, Philip.(Editor)},
	title = {Obstetrics by ten teachers.},
	publisher = {Hodder Arnold ,},
	year = {2011 .},
	address = {London :},
	edition = {19th ed. },
	url = {https://books.google.com.pk/books?id=oZaLO2xvi-QC&printsec=frontcover&dq=9781444122305&hl=en&sa=X&ved=2ahUKEwiulIqBour0AhXuQkEAHe7PBuQQ6AF6BAgIEAI#v=onepage&q&f=false}
}