@book{9912,
	author = {Westbrook, R.D},
	title = {Lifetime Factors in Silicon: A Symposium, Issue 712},
	publisher = {American Technical,},
	year = {1980.},
	address = {USA:},
	url = {http://books.google.com.pk/books/about/Lifetime_Factors_in_Silicon.html?id=LCtRAAAAMAAJ&redir_esc=y}
}