@book{5166,
	author = {Johnsonbaugh, Richard,},
	title = {Discrete mathematics /},
	publisher = {Prentice Hall ;},
	year = {c2001.[Reprinted 2003, 2002, 2003]},
	series = {The JK computer science and mathematics series},
	address = {Upper Saddle River, N.J. :},
	edition = {5th ed.}
}