TY  - BOOK
ED  - Harvard University. Computation Laboratory
TI  - Description of a magnetic drum calculator
U1  - 681.141 
PY  - 1952///
CY  - Cambridge
PB  - Harvard University Press
KW  - Calculating mchines
KW  - Calculator
N1  - Published in the Annals of the Computation Laboratory of Harvard University, v.25
ER  -