@book{61271,
	author = {Clapham, Christopher. and Nicholson, James},
	title = {The concise Oxford dictionary of mathematics.},
	publisher = {Oxford University Press,},
	year = {2009.},
	address = {Oxford ;},
	edition = {4th ed. /},
	note = {http://www.amazon.com/Concise-Dictionary-Mathematics-Paperback-Reference/dp/0199235945/ref=sr_1_1?s=books&ie=UTF8&qid=1414046033&sr=1-1&keywords=9780199235940}
}
