Getting into VSAM : an introduction and technical reference / Michael P. Bouros. Bouros, Michael P. Virtual computer systems. QA76.9.V5 B68 1987 001.6/4 19 BOG "A Wiley-Interscience publication." Includes index. New York : Wiley, c1987. c1987. 1987 Text xxviii, 464 p. : eng