TY  - BOOK
AU  - Blohm,Hans
AU  - Beer,Stafford
AU  - Suzuki,David T.
TI  - Pebbles to computers: the thread 
SN  - 0195405366
AV  - QA76.17 .B57 1986
U1  - 500 19
PY  - 1986///
CY  - Toronto
PB  - Oxford University Press
KW  - Computers
KW  - History
KW  - Numeration
N1  - Bibliography: p. 109
UR  - http://www.loc.gov/catdir/enhancements/fy0639/87126362-d.html
UR  - http://www.loc.gov/catdir/enhancements/fy0725/87126362-b.html
ER  -