TY  - BOOK
AU  - Checkland,Peter
TI  - Systems thinking, systems practice: Includes a 30-year retrospective 
SN  - 0471279110
U1  - 003 CHE 23
PY  - 1999///
CY  - Chichester [Sussex], New York
PB  - J. Wiley
KW  - System theory
KW  - System design
N1  - Includes indexes; Includes bibliographical references and index.
UR  - http://openisbn.com/isbn/0471986062/
ER  -