TY  - BOOK
AU  - Leon, Alexis.
AU  - Leon, Mathews.
TI  - Introduction to information systems
SN  - 8182090105
U1  - 658.403 LEO 
PY  - 2004///
CY  - India
PB  - Vijay Nicole
KW  - Information
N1  - Includes bibliographical references and index
ER  -