@book{97,
	author = {KOEPPEN, D. R. and WEYGANDT, J. J., KIESO, D. E & KELL, W. G.},
	title = {Solving Principles of Accounting Problems: Using Lotus 1-2-3.},
	publisher = {John Wiley & Sons,},
	year = {1990.},
	address = {New York,},
	edition = {2nd Ed.}
}