00671nam a22002051 4500 1/20721 040119s2001 enk b 0 11 eng d 0932633498 21318 DLC GR-PeUP 003 WEI Weinberg, Gerald M. An introduction to general systems thinking / Gerald M. Weinberg. Silver anniversary edition New York ; Dorset House, 2001 xxi, 279 p. ; 22 cm. Includes bibliography and index System theory. INST UNIPILB MAIN 20040709 003 WEI 00143243 00143243 LOAN 0 1 /webopac/covers/01/21318_0932633498.jpg