@book{4864,
	author = {Come, E. C.},
	title = {Notes on dental materials},
	publisher = {n.a},
	year = {1992.},
	address = {Manchester,},
	edition = {6th ed.},
	url = {https://books.google.com.pk/books?id=rzhqAAAAMAAJ&q=Notes+on+dental+materials&dq=Notes+on+dental+materials&hl=en&sa=X&redir_esc=y}
}