@book{521,
	author = {Prosser, Franklin P. and Winkel, David E.},
	title = {The art of digital design :},
	publisher = {Prentice-Hall,},
	year = {c1987.},
	address = {Englewood Cliffs, N.J. :},
	edition = {2nd ed.},
	note = {Order of author's names reversed on previous ed.}
}