Leach, Donald P. Digital principles and applications / by Donald P. Leach, Albert Paul Malvino and Goutam Saha. - 7th ed / . - New Delhi : Tata McGraw Hill Education , 2011. - xxii,683p. : ills.,figs.,tables ; 24cm . Includes index ISBN: RS 335.00 (Pbk) Subjects--Index Terms: APPLIED PHYSICS Dewey Class. No.: 621.395 / LEA/D