Design patterns : elements of reusable object-oriented software / Erich Gamma ... [et al.]. - xv, 395 pages : illustrations ; 21 cm. - Addison-Wesley professional computing series . Includes bibliographical references and index. ISBN: 0201633612 (acidfree paper) 0201889188 LCCN: 94034264 Subjects--Topical Terms: Object-oriented programming (Computer science)Computer software--Reusability.Software patterns. LC Class. No.: QA76.64 / .D47 1995 Dewey Class. No.: 005.1/2