@book{25,
	author = {Brown, Stephen.  and Vranesic, Zvonko. },
	title = {Fundamentals of digital logic with verilog design /},
	publisher = {Tata McGraw hill education,},
	year = {c2008 [Reprinted 2010].},
	address = {New Delhi :},
	edition = {2nd ed.},
	note = {Includes index.}
}