TY  - BOOK
AU  - Dewdney,A.K.
TI  - The armchair universe : an exploration of computer worlds
SN  - 0716719398
U1  - QA/76.6 
PY  - 1988///
CY  - New York
PB  - W. H. Freeman and Company.
KW  - Computer software.
KW  - Microcomputers -- Programming.
ER  -