@book{21007,
	author = {Rohatgi, Vijay K. and Saleh, A. K. Md. Ehsanes},
	title = {An introduction to probability and statistics /},
	publisher = {John Wiley,},
	year = {2001},
	series = {Wiley series in Probability and Statistics},
	address = {New York:},
	edition = {2nd}
}