TY  - BOOK
AU  - Thorpe, Edgar 
AU  - Thorpe, Showick
TI  - The Pearson guide to the CDS examinations / 
SN  - 8131700747
U1  - 000 
PY  - 2008///
CY  - Delhi 
PB  - Pearson Education
UR  - http://www.loc.gov/catdir/toc/ecip0620/2006028544.html
ER  -