@book{12780,
	author = {Watkins, Richard P.},
	title = {Computer problem solving /},
	publisher = {John Wiley & Sons Australia Ltd,},
	year = {1975.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/0471921688/chopaconline-20}
}