TY  - BOOK
AU  - Preppernau,Joan
AU  - Cox,Joyce
TI  - Windows 7 :  : step by step 
SN  - 9788120341166:
U1  - 005.44WIN PRE/W 23
PY  - 2010///
CY  - New Delhi : 
PB  - PHI Learning , 
KW  - WINDOWS 7
N1  - Includes index
ER  -