LEDGARD, Henry Singer, Andrew McQuaid, E.Patrick From baker street to binary: an introduction to computers and computer programmi /[by] Henry Ledgard, E.Patrick McQuaid, Andrew Singer - New York McGraw-Hill 1983 - x, 278 p. Includes appendixes and index. ISBN: 70369836 Subjects--Topical Terms: Computer science Dewey Class. No.: 4 / LED