TY  - BOOK
AU  - Shelley, John  
AU  - Hunt,  Roger 
TI  - Computer studies : a first course
SN  - 8185614385 
U1  - 004 
PY  - 1993///
CY  - Allahabad
PB  - A.H.Wheeler
KW  - Electronic data processing.
KW  - Computer systems - For schools
ER  -