@book{54627,
	author = {Yule, G. Udny and Kendall, Maurice G.},
	title = {An introduction to the theory of statistics /},
	publisher = {C. Griffin,},
	year = {1950.},
	series = {Griffin's scientific text-books},
	address = {London :},
	edition = {14th ed., rev. throughtout and re-set.}
}