@book{624,
	author = {Martin, Edward G.},
	title = {Using application software : featuring DOS 6.0,  WordPerfect 6.0, Lotus 1-2-3 2.4, and dBASE IV 2.0 / Edward  G. Martin.},
	address = {DanveRed Sport, Mass. : Boyd & Fraser Pub. Co., c1994.}
}