TY  - BOOK
AU  - Orr,Ken
TI  - Structured requirements definition
SN  - 096058840X (pbk.)
AV  - Q  295 .O77 1981 .O77
U1  - 003 19
PY  - 1981///
CY  - Topeka, Kan.
PB  - K. Orr
KW  - System theory
N1  - Includes index; Bibliography: p. [225]-227
ER  -