TY  - BOOK
AU  - Singh,Ashok Kumar
TI  - Science and technology for civil services examinations / 
SN  - 9780070655485
U1  - 600 
PY  - 2008///, rep. 2014
CY  - New Delhi : 
PB  - McGraw Hill Education (India) , 
KW  - SCIENCE AND TECHNOLOGY
KW  - TECHNOLOGY
N1  - includes glossary and appendix
ER  -