TY  - BOOK
AU  - Bhatnagar, Seema .,
TI  - Textbook of computer science for class XII
SN  - 9788120335189
U1  - 005.131 BHA 
PY  - 2008///
CY  - New Delhi
PB  - PHI Learning
N1  - Includes bibliographical references and index
ER  -