@book{1851,
	author = {Poskitt, Kjartan. and Postgate, Daniel.},
	title = {Awesome arithmetricks /},
	publisher = {Scholastic,},
	year = {2008.},
	series = {Murderous maths},
	address = {London :},
	note = {Originally published: London: Hippo, 1999.}
}