1986 - File Techniques for Data Base Organization in Cobol (Hardcover) → Paperback ISBN-13: 9780133147179 ISBN-10: 0133147177 Genre: Computers & Technology ? 1981 - File Techniques for Data Base Organization in Cobol (Paperback) → Hardcover ISBN-13: 9780133140392 ISBN-10: 0133140393 Genre: Reference ? |