TY  - GEN
AU  - Singh, Ashok Kumar
TI  - Science and technology : : for civil services examinations
SN  - 9780070655485
U1  - 600.15 
PY  - 2017///
CY  - Chennai
PB  - McGraw Hill Education (India) Pvt. Ltd.
KW  - Science
KW  - Technology
KW  - Science and technology
KW  - Science and technology for civil services examinations
N1  - It includes bibliography, appendix
ER  -