TY  - BOOK
AU  - Singh, Ashok Kumar
TI  - Science and Technology: :for civil services examinations
SN  - 9780070655485
U1  - 620.076 
PY  - 2016///
CY  - New Delhi
PB  - McGraw Hill Education
KW  - Science and Technology
KW  - Applied Science
N1  - Included Glossary
ER  -