@book{21308,
	author = {Walker, Jearl, and Halliday, David,},
	title = {Fundamentals of physics /},
	publisher = {Wiley,},
	year = {c2011.},
	address = {Hoboken, NJ :},
	edition = {9th ed., extended.},
	note = {At head of title: Halliday & Resnick.}
}