@book{6920,
	author = {Mithal, G. K.  and Vanwasi, A. K. },
	title = {Pulse and digital electronics :},
	publisher = {Khanna,},
	year = {c1985 [Reprinted 1993]},
	address = {New Delhi :},
	edition = {2nd ed.},
	note = {Includes index.}
}