TY  - BOOK
AU  - Singh, Ashok Kumar
TI  - Science & Technology For Civil Services Examinations
SN  - 978-0-07-065548-5
U1  - 351.076 
CY  - New Delhi
PB  - Tata McGraw Hill Education Private Limited
KW  - Civil Service Examination
N1  - 4433
ER  -