Crowder, Norman A. The arithmetic of computers : an introduction to Binary and Octal mathematics / by Norman A. Crowder, consultant editor : Richard Goodman - 3rd ed. - London : English Universities Press, c1962 - viii, 472 p. ; 21 cm. - Tutor texts . Includes index ISBN: USD 25.00 Subjects--Topical Terms: Electronic calculating machinesMathematics--Problems, exercises, etc Dewey Class. No.: 510.78