@book{2233,
	author = {Mood, Alexander McFarlane. and Graybill, Franklin A.,},
	title = {Introduction to the theory of statistics /},
	publisher = {McGraw-Hill, },
	year = {c1963.},
	series = {McGraw-Hill series in probability and statistics},
	address = {New York :},
	edition = {2nd ed.}
}