TY  - BOOK
AU  - Yourdon,Edward
TI  - Managing the system life cycle : a software development methodolgoy overview / 
U1  - 004.2 
PY  - 1982///
CY  - New York
PB  - Yourdon Press, 
KW  - Computers
KW  - Software
N1  - Includes index and bibliographical references
ER  -