@book{2337,
	author = {Powers, John M., and Wataha, John C.},
	title = {Dental materials :},
	publisher = {Mosby/Elsevier,},
	year = {c2008.},
	address = {St. Louis, Mo. :},
	edition = {9th ed.},
	url = {https://books.google.com.pk/books?id=stM5XwAACAAJ&dq=Dental+materials+properties+and+manipulation+10th+edition&hl=en&sa=X&redir_esc=y}
}