Tokheim, Roger L. Schaum's outline of theory and problems of digital principles [Book] / Roger L. Tokheim. - 3rd ed. - New Delhi : Tata McGraw-Hill Publishing Company Ltd., c1994. - vii, 352 p. : ill. ; 28 cm. - Schaum's outline series. . Includes index. All. ISBN: 0070589550 Subjects--Topical Terms: Digital electronics.Electronic circuits. Dewey Class. No.: 621.381