@book{59497,
	author = {O'Leary, Timothy J., and O'Leary, Linda I.},
	title = {Computing essentials 2012 /},
	publisher = {McGraw-Hill Irwin,},
	year = {c2012},
	address = {New York :},
	edition = {Introductory ed.},
	note = {Includes index.}
}