@book{300,
	author = {ET.AL, DAY R.A.},
	title = {Quantitative analysis, 6th ed. /},
	publisher = {PRENTICE HALL,},
	year = {1991.},
	address = {New Delhi},
	url = {http://www.amazon.com/exec/obidos/ASIN/8120307933/chopaconline-20}
}