TY  - BOOK
AU  - Davis,Alan Mark
TI  - Software requirements: objects, functions, and states 
SN  - 013805763X
AV  - QA76.76.D47 D395
PY  - 1993///
CY  - Englewood Cliffs, N.J.
PB  - PTR Prentice Hall
KW  - Computer software
KW  - Development
N1  - Includes bibliographical references (p. 376-492) and index
ER  -