TY  - BOOK
AU  - Freeman,Peter
TI  - Software perspectives: the system is the message 
SN  - 0201119692 (pbk.) :
U1  - 005 22
PY  - 1987///
CY  - Reading, Mass.
PB  - Addison-Wesley
KW  - Computer software
N1  - Includes indexes; Bibliography: p. 281-287
ER  -