TY  - BOOK
AU  - Montgomerie, G.A.
TI  - Digital calculating machines: and their application to scientific and engineering work
U1  - 621.39 21st ed.
PY  - 1956///
CY  - London
PB  - Blackie & Son 
KW  - Key-responsive adding machines
KW  - Four-rule machines
KW  - Four-rule automatic machines
KW  - Special-purpose machines
KW  - Electronic sequence-controlled machines
KW  - Programming of sequence
N1  - This book is also available at Accession no. A42142
ER  -