TY  - BOOK
AU  - Casti,John L.
TI  - Alternate realities: mathematical models of nature  and man
SN  - 0-471-61842-X
U1  - C 001.434 C135a 1989 
PY  - 1989///
CY  - New York
PB  - John Hopkins University Press
KW  - Análisis de Sistema
ER  -