@book{12, author = {Illingworth, Valerie.}, address = {Oxford ;}, note = {General editor: Valerie Illingworth.}, year = {1996.}, title = {Dictionary of computing.}, publisher = {Oxford University Press,}, edition = {4th ed.}, url = {http://www.loc.gov/catdir/enhancements/fy0637/86195797-d.html} }