@book{3087,
	author = {Lawrence, Peter F.},
	title = {Essentials of Surgical Specialties },
	publisher = {LWW ,},
	year = {2000 .},
	address = {Philadelphia :},
	edition = {2nd ed.},
	url = {https://books.google.com.pk/books?id=wLtiQgAACAAJ&dq=9780683301342&hl=en&sa=X&ved=2ahUKEwiRwr3t2uf0AhXKQkEAHTuyCn8Q6AF6BAgCEAI}
}