TY  - BOOK
AU  - TECHMEDIA;
TI  - SAMS TEACH YOURSELF ABAP/4:IN 21 DAYS
SN  - 81-7635-162-8
U1  - 5.133 
PY  - 2007///
CY  - NEWDELHI
PB  - TECHMEDIA
KW  - "4,PROGRAMMING-ABAP"
N1  - 855
ER  -