TY  - BOOK
AU  - Hall 
TI  - Digital circuits and systems 
SN  - 0070255377 
U1  - 621.3815 HAL 1989 
PY  - 1989///
CY  - New York
PB  - McGraw-Hill
KW  - Digital electronics
N1  - Includes bibliographical references and index
ER  -