@book{7615,
	author = {Schwartz, Seymour I.(Editor)},
	title = {Principles of surgery },
	publisher = {McGraw Hill ,},
	year = {1994 .},
	address = {New York :},
	edition = {6th ed. },
	url = {https://books.google.com.pk/books?id=JudtvwEACAAJ&dq=0071136762&hl=en&sa=X&redir_esc=y}
}