TY  - BOOK
AU  - Ryan K. Stephens
TI  - Teach Yourself SQL 21 days
SN  - 0000051626
U1  - 001.6424Sql 
PY  - 2007///
CY  - New Delhi
PB  - Techmedia
KW  -  days
KW  -  SQL
KW  -  Teach
KW  -  Yourself
KW  - 21
KW  - Sql
ER  -