Hobbs, Walter V., User guide for the RAND database handling (DBH) system / Walter V. Hobbs, Donald E. Lewis ; prepared for the United States Air Force. - ix, 23 pages : illustrations ; 28 cm. - A Rand note ; N-3104-AF . - Rand note ; N-3104-AF. . Includes bibliographical references. ISBN: Hadiah Subjects--Uniform Titles: DBH (Computer program) Subjects--Topical Terms: Computer programs--Handbooks, manuals, etc.