@book{5230,
	author = {Smith, Bernard},
	title = {Smith's planning and making crowns bridges'},
	publisher = {In forma Healthcare,},
	year = {2008.},
	address = {New York, },
	edition = {5th ed.},
	url = {https://books.google.com.pk/books?id=BZRsBgAAQBAJ&pg=PA188&dq=Smith%27s+planning+and+making+crowns+bridges&hl=en&sa=X&ved=2ahUKEwja8NyWwdb0AhXaiv0HHShlAekQ6AF6BAgLEAI#v=onepage&q=Smith's%20planning%20and%20making%20crowns%20bridges&f=false}
}