TY  - BOOK
AU  -  Tokheim, Roger.
TI  - Digital electronics : : principles and applications 
SN  - 9780073373775
AV  - 25637-25638 
U1  - 621.381 22
PY  - 2014///
CY  - New York
PB  - McGraw Hill
N1  - Includes Index
ER  -