TY  - BOOK
AU  - Gane,Christopher P
AU  - Sarson,Trish
TI  - Structured systems analysis: tools and techniques 
SN  - 0930196007
U1  - 003 22
PY  - 1989///].
CY  - Missouri: 
PB  - McDonnell Douglas, 
KW  - Electronic data processing
KW  - System analysis
N1  - Includes bibliographical references and index
ER  -