TY  - BOOK
AU  - Held,Gilbert
TI  - IBM PC AT user's reference manual
SN  - 0810463946
U1  - 004.16 IBM 
PY  - 1985///
CY  - New Jersey
PB  - Hayden Book Company
KW  - IBM - personal computer
KW  - IBM  personal computer - AT
ER  -