@book{4929,
	title = {Picakar's manual of operative dentistry},
	publisher = {OXFORD,},
	year = {2011.},
	address = {Karachi,},
	edition = {9th ed.},
	url = {https://books.google.com.pk/books?id=v8egpRJ3QrAC&printsec=frontcover&dq=manual+of+operative+dentistry&hl=en&sa=X&redir_esc=y#v=onepage&q=manual%20of%20operative%20dentistry&f=false}
}