@book{552,
	author = {Byrkett, Donald L. and Davis, William S., and Schreiner, Paul W. and Wood, Craig A.},
	title = {Productivity tools},
	publisher = {Addison-Wesley},
	year = {1990.},
	series = {Computing fundamentals},
	address = {Reading, Mass},
	note = {Index: p. 611-622.}
}