@book{32953,
	author = { Allisy-Roberts, Penelope and  Williams, Jerrry and williams, jerry},
	title = {Farr's physics for medical imaging/},
	publisher = {Saunders,},
	year = {c 2008.},
	address = { New York :  },
	edition = {2nd ed.},
	note = {includes reference and index}
}