@book{71244,
	author = {The Waite Group. and Angermeyer, John. and Waite Group.},
	title = {Understanding MS-DOS},
	publisher = {H.W. Sams},
	year = {[1989]},
	series = {Sams understanding series},
	address = {Carmel, Ind., USA},
	edition = {2nd ed.},
	note = {Includes index.}
}